diff --git a/CLAUDE.md b/CLAUDE.md
index 1c51f73..a617915 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -78,6 +78,12 @@ Decorate controllers/handlers with:
 @RequirePermissions(Permission.VIEW_SCANNER)
 ```
 
+`PermissionsGuard` is **deny by default**: every route needs `@RequirePermissions(...)`,
+`@AllowAnyAuthenticated()` (any logged-in user, e.g. own user settings) or `@Public()`.
+API keys carry no permissions and are rejected everywhere except routes marked
+`@AllowApiKey()` (Paperless webhook, external upload, label-print agent). `routen-rechte.spec.ts`
+fails if a route has no explicit decision or if the API-key route list changes.
+
 Permissions map from OIDC groups (`PM_Admin`, `PM_Buchhaltung`, `PM_Posteingang`, etc.) to the
 `Permission` enum in `src/auth/permissions.enum.ts`. **This mapping is duplicated in
 `paperless-frontend/src/auth/permissions.ts` and both copies must list the same group names** —
@@ -89,6 +95,9 @@ every authenticated request — do not re-introduce ad-hoc writes to those ident
 
 Use `@Public()` to bypass auth guards entirely.
 
+Paperless custom fields 15 (Freigabe) and 16 (Zahlung) may only be set by the matching role —
+see `src/paperless/status-felder.util.ts`.
+
 ### Database
 
 - TypeORM with MySQL/MariaDB, UTF8MB4
diff --git a/docs/BACKEND_API.md b/docs/BACKEND_API.md
index f00aa88..57e0e2d 100644
--- a/docs/BACKEND_API.md
+++ b/docs/BACKEND_API.md
@@ -12,7 +12,9 @@ Alle Endpunkte erfordern einen Bearer Token (JWT oder API-Key):
 Authorization: Bearer {token}
 ```
 
-`/jobs/next`, `/jobs/:id/image`, `/jobs/:id/printed` und `/jobs/:id/error` benötigen **keine** spezifische Permission (nur gültigen Token). `POST /jobs` und `POST /preview` erfordern `VIEW_SCANNER`.
+`/events`, `/jobs/next`, `/jobs/:id/image`, `/jobs/:id/printed` und `/jobs/:id/error` sind die Agent-Routen: Sie nehmen einen **API-Key** an (`X-API-Key`, `?apiKey=` oder `Authorization: Bearer pm_…`); Benutzer mit JWT brauchen dort `MANAGE_SETTINGS`. `POST /jobs` und `POST /preview` erfordern `VIEW_SCANNER` und nehmen **keinen** API-Key an.
+
+`printed` und `error` werden nur für vom Agenten abgeholte, noch offene Jobs angenommen, sonst `409 Conflict`. Ein wiederholtes `printed` bzw. `error` für einen bereits so abgeschlossenen Job ist ein No-op (kein zweiter Callback).
 
 ---
 
diff --git a/paperless-backend/src/app.controller.ts b/paperless-backend/src/app.controller.ts
index cce879e..5d67f8c 100644
--- a/paperless-backend/src/app.controller.ts
+++ b/paperless-backend/src/app.controller.ts
@@ -1,11 +1,13 @@
 import { Controller, Get } from '@nestjs/common';
 import { AppService } from './app.service';
+import { AllowAnyAuthenticated } from './auth/permissions.decorator';
 
 @Controller()
 export class AppController {
   constructor(private readonly appService: AppService) {}
 
   @Get()
+  @AllowAnyAuthenticated()
   getHello(): string {
     return this.appService.getHello();
   }
diff --git a/paperless-backend/src/auth/permissions.decorator.ts b/paperless-backend/src/auth/permissions.decorator.ts
index 8618a10..1554081 100644
--- a/paperless-backend/src/auth/permissions.decorator.ts
+++ b/paperless-backend/src/auth/permissions.decorator.ts
@@ -2,5 +2,24 @@ import { SetMetadata } from '@nestjs/common';
 import { Permission } from './permissions.enum';
 
 export const PERMISSIONS_KEY = 'permissions';
+export const ALLOW_ANY_AUTHENTICATED_KEY = 'allowAnyAuthenticated';
+export const ALLOW_API_KEY_KEY = 'allowApiKey';
+
+/** Route nur für Benutzer mit mindestens einer der Berechtigungen. */
 export const RequirePermissions = (...permissions: Permission[]) =>
   SetMetadata(PERMISSIONS_KEY, permissions);
+
+/**
+ * Route für jeden angemeldeten Benutzer – auch ohne PM-Gruppe (z.B. eigene
+ * Benutzereinstellungen). Muss ausdrücklich gesetzt werden: Routen ohne
+ * Rechteangabe lehnt der PermissionsGuard ab.
+ */
+export const AllowAnyAuthenticated = () =>
+  SetMetadata(ALLOW_ANY_AUTHENTICATED_KEY, true);
+
+/**
+ * Route darf (auch) mit API-Key aufgerufen werden. API-Keys haben keine
+ * eigenen Rechte; ohne diese Markierung lehnt der PermissionsGuard sie ab.
+ * Für Benutzer (JWT) gilt zusätzlich @RequirePermissions.
+ */
+export const AllowApiKey = () => SetMetadata(ALLOW_API_KEY_KEY, true);
diff --git a/paperless-backend/src/auth/permissions.guard.spec.ts b/paperless-backend/src/auth/permissions.guard.spec.ts
new file mode 100644
index 0000000..b43aaa5
--- /dev/null
+++ b/paperless-backend/src/auth/permissions.guard.spec.ts
@@ -0,0 +1,148 @@
+/* eslint-disable @typescript-eslint/unbound-method -- Handler dienen nur als Metadaten-Schlüssel */
+import { ExecutionContext, ForbiddenException } from '@nestjs/common';
+import { Reflector } from '@nestjs/core';
+import { PermissionsGuard } from './permissions.guard';
+import {
+  AllowAnyAuthenticated,
+  AllowApiKey,
+  RequirePermissions,
+} from './permissions.decorator';
+import { Public } from './public.decorator';
+import { Permission } from './permissions.enum';
+
+class Routen {
+  @RequirePermissions(Permission.VIEW_MAIL)
+  mail() {}
+
+  @AllowAnyAuthenticated()
+  eigeneEinstellungen() {}
+
+  ohneAngabe() {}
+
+  @Public()
+  oeffentlich() {}
+
+  @AllowApiKey()
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
+  agent() {}
+
+  @AllowApiKey()
+  nurApiKey() {}
+}
+
+@RequirePermissions(Permission.VIEW_INBOX)
+class KlasseMitRecht {
+  route() {}
+}
+
+function ctx(
+  handler: (...args: unknown[]) => unknown,
+  request: Record<string, unknown>,
+  cls: object = Routen,
+): ExecutionContext {
+  return {
+    getHandler: () => handler,
+    getClass: () => cls,
+    switchToHttp: () => ({ getRequest: () => request }),
+  } as unknown as ExecutionContext;
+}
+
+const r = Routen.prototype;
+const nutzer = (...permissions: Permission[]) => ({
+  method: 'GET',
+  url: '/x',
+  user: { permissions },
+});
+const apiKey = {
+  method: 'GET',
+  url: '/x',
+  apiKeyMetadata: { id: '1', name: 'Agent' },
+};
+
+describe('PermissionsGuard', () => {
+  const guard = new PermissionsGuard(new Reflector());
+
+  it('erlaubt Benutzer mit passender Berechtigung', () => {
+    expect(guard.canActivate(ctx(r.mail, nutzer(Permission.VIEW_MAIL)))).toBe(
+      true,
+    );
+  });
+
+  it('verweigert Benutzer ohne passende Berechtigung', () => {
+    expect(guard.canActivate(ctx(r.mail, nutzer(Permission.VIEW_INBOX)))).toBe(
+      false,
+    );
+  });
+
+  it('erlaubt Admins (MANAGE_ALL) überall mit Rechteangabe', () => {
+    expect(guard.canActivate(ctx(r.mail, nutzer(Permission.MANAGE_ALL)))).toBe(
+      true,
+    );
+  });
+
+  it('übernimmt Rechte von der Klasse', () => {
+    const k = KlasseMitRecht.prototype;
+    expect(
+      guard.canActivate(
+        ctx(k.route, nutzer(Permission.VIEW_INBOX), KlasseMitRecht),
+      ),
+    ).toBe(true);
+    expect(
+      guard.canActivate(
+        ctx(k.route, nutzer(Permission.VIEW_MAIL), KlasseMitRecht),
+      ),
+    ).toBe(false);
+  });
+
+  it('verweigert Routen ohne Rechteangabe (deny by default) – auch Admins', () => {
+    expect(
+      guard.canActivate(ctx(r.ohneAngabe, nutzer(Permission.MANAGE_ALL))),
+    ).toBe(false);
+  });
+
+  it('erlaubt @AllowAnyAuthenticated jedem angemeldeten Benutzer, auch ohne PM-Gruppe', () => {
+    expect(guard.canActivate(ctx(r.eigeneEinstellungen, nutzer()))).toBe(true);
+    expect(
+      guard.canActivate(
+        ctx(r.eigeneEinstellungen, { method: 'GET', url: '/x' }),
+      ),
+    ).toBe(false);
+  });
+
+  it('lässt @Public-Routen immer durch', () => {
+    expect(
+      guard.canActivate(ctx(r.oeffentlich, { method: 'GET', url: '/x' })),
+    ).toBe(true);
+  });
+
+  describe('API-Keys', () => {
+    it('gelten nur auf Routen mit @AllowApiKey', () => {
+      expect(guard.canActivate(ctx(r.agent, apiKey))).toBe(true);
+      expect(guard.canActivate(ctx(r.nurApiKey, apiKey))).toBe(true);
+    });
+
+    it('umgehen keine Rechteprüfung mehr auf anderen Routen', () => {
+      expect(() => guard.canActivate(ctx(r.mail, apiKey))).toThrow(
+        ForbiddenException,
+      );
+      expect(() =>
+        guard.canActivate(ctx(r.eigeneEinstellungen, apiKey)),
+      ).toThrow(ForbiddenException);
+      expect(() => guard.canActivate(ctx(r.ohneAngabe, apiKey))).toThrow(
+        ForbiddenException,
+      );
+    });
+
+    it('Benutzer brauchen auf @AllowApiKey-Routen weiterhin die Berechtigung', () => {
+      expect(
+        guard.canActivate(ctx(r.agent, nutzer(Permission.VIEW_SCANNER))),
+      ).toBe(false);
+      expect(
+        guard.canActivate(ctx(r.agent, nutzer(Permission.MANAGE_SETTINGS))),
+      ).toBe(true);
+      expect(
+        guard.canActivate(ctx(r.nurApiKey, nutzer(Permission.MANAGE_ALL))),
+      ).toBe(false);
+    });
+  });
+});
diff --git a/paperless-backend/src/auth/permissions.guard.ts b/paperless-backend/src/auth/permissions.guard.ts
index 9be61d7..2f28883 100644
--- a/paperless-backend/src/auth/permissions.guard.ts
+++ b/paperless-backend/src/auth/permissions.guard.ts
@@ -1,34 +1,77 @@
-import { Injectable, CanActivate, ExecutionContext } from '@nestjs/common';
+import {
+  Injectable,
+  CanActivate,
+  ExecutionContext,
+  ForbiddenException,
+  Logger,
+} from '@nestjs/common';
 import { Reflector } from '@nestjs/core';
-import { PERMISSIONS_KEY } from './permissions.decorator';
+import {
+  ALLOW_ANY_AUTHENTICATED_KEY,
+  ALLOW_API_KEY_KEY,
+  PERMISSIONS_KEY,
+} from './permissions.decorator';
+import { IS_PUBLIC_KEY } from './public.decorator';
 import { Permission } from './permissions.enum';
 
+interface GeprueftesRequest {
+  method: string;
+  url: string;
+  user?: { permissions?: Permission[] };
+  apiKeyMetadata?: { id: string; name: string };
+}
+
+/**
+ * Prüft Berechtigungen – deny by default:
+ * - @Public: immer erlaubt
+ * - API-Key: nur auf Routen mit @AllowApiKey
+ * - Benutzer: @RequirePermissions (eine genügt, MANAGE_ALL immer) oder
+ *   @AllowAnyAuthenticated; Routen ohne beides werden abgelehnt.
+ */
 @Injectable()
 export class PermissionsGuard implements CanActivate {
+  private readonly logger = new Logger(PermissionsGuard.name);
+
   constructor(private reflector: Reflector) {}
 
   canActivate(context: ExecutionContext): boolean {
-    const requiredPermissions = this.reflector.getAllAndOverride<Permission[]>(
-      PERMISSIONS_KEY,
-      [context.getHandler(), context.getClass()],
-    );
+    const targets = [context.getHandler(), context.getClass()];
+    const meta = <T>(key: string) =>
+      this.reflector.getAllAndOverride<T | undefined>(key, targets);
 
-    if (!requiredPermissions) {
-      return true;
-    }
+    if (meta<boolean>(IS_PUBLIC_KEY)) return true;
 
-    const request = context.switchToHttp().getRequest();
-    const { user } = request;
+    const request = context.switchToHttp().getRequest<GeprueftesRequest>();
+    const route = `[${request.method} ${request.url}]`;
 
     if (request.apiKeyMetadata) {
-      return true;
+      if (meta<boolean>(ALLOW_API_KEY_KEY)) return true;
+      this.logger.warn(
+        `${route} API-Key "${request.apiKeyMetadata.name}" ist für diese Route nicht freigegeben`,
+      );
+      throw new ForbiddenException(
+        'API-Key ist für diese Route nicht freigegeben',
+      );
+    }
+
+    const { user } = request;
+    const requiredPermissions = meta<Permission[]>(PERMISSIONS_KEY);
+
+    if (!requiredPermissions) {
+      if (meta<boolean>(ALLOW_ANY_AUTHENTICATED_KEY)) return !!user;
+      if (!meta<boolean>(ALLOW_API_KEY_KEY)) {
+        this.logger.error(
+          `${route} Route ohne @RequirePermissions/@AllowAnyAuthenticated – abgelehnt`,
+        );
+      }
+      return false;
     }
 
     if (!user || !user.permissions) {
       return false;
     }
 
-    const userPermissions = user.permissions as Permission[];
+    const userPermissions = user.permissions;
 
     if (userPermissions.includes(Permission.MANAGE_ALL)) {
       return true;
diff --git a/paperless-backend/src/auth/routen-rechte.spec.ts b/paperless-backend/src/auth/routen-rechte.spec.ts
new file mode 100644
index 0000000..17d47de
--- /dev/null
+++ b/paperless-backend/src/auth/routen-rechte.spec.ts
@@ -0,0 +1,99 @@
+import 'reflect-metadata';
+import { readdirSync, statSync } from 'fs';
+import { join } from 'path';
+import { METHOD_METADATA, PATH_METADATA } from '@nestjs/common/constants';
+import { RequestMethod } from '@nestjs/common';
+import {
+  ALLOW_ANY_AUTHENTICATED_KEY,
+  ALLOW_API_KEY_KEY,
+  PERMISSIONS_KEY,
+} from './permissions.decorator';
+import { IS_PUBLIC_KEY } from './public.decorator';
+
+// Der Agrarmonitor-Connector zieht jsdom (ESM) – für die reine Metadatenprüfung
+// genügt ein Platzhalter.
+jest.mock('agrarmonitor-connector', () => ({}));
+
+/** Alle *.controller.ts unter src/ (ohne Tests). */
+function controllerDateien(dir: string): string[] {
+  return readdirSync(dir).flatMap((name) => {
+    const pfad = join(dir, name);
+    if (statSync(pfad).isDirectory()) return controllerDateien(pfad);
+    return name.endsWith('.controller.ts') ? [pfad] : [];
+  });
+}
+
+type Klasse = { name: string; prototype: Record<string, unknown> };
+
+function routen() {
+  const ergebnis: {
+    route: string;
+    meta: (key: string) => unknown;
+  }[] = [];
+  for (const datei of controllerDateien(join(__dirname, '..'))) {
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const modul = require(datei) as Record<string, unknown>;
+    for (const exp of Object.values(modul)) {
+      if (typeof exp !== 'function') continue;
+      const klasse = exp as unknown as Klasse;
+      const basis = Reflect.getMetadata(PATH_METADATA, klasse) as
+        | string
+        | undefined;
+      if (basis === undefined) continue;
+      for (const name of Object.getOwnPropertyNames(klasse.prototype)) {
+        const handler = klasse.prototype[name];
+        if (typeof handler !== 'function') continue;
+        const methode: unknown = Reflect.getMetadata(METHOD_METADATA, handler);
+        if (methode === undefined) continue;
+        const pfad = String(Reflect.getMetadata(PATH_METADATA, handler));
+        ergebnis.push({
+          route: `${RequestMethod[methode as number]} /${basis}/${pfad} (${klasse.name}.${name})`,
+          meta: (key) =>
+            (Reflect.getMetadata(key, handler) as unknown) ??
+            (Reflect.getMetadata(key, klasse) as unknown),
+        });
+      }
+    }
+  }
+  return ergebnis;
+}
+
+describe('Rechteangabe aller Routen', () => {
+  const alle = routen();
+
+  it('findet die Controller', () => {
+    expect(alle.length).toBeGreaterThan(100);
+  });
+
+  it('jede Route hat @RequirePermissions, @AllowAnyAuthenticated, @AllowApiKey oder @Public', () => {
+    const ohne = alle
+      .filter(
+        ({ meta }) =>
+          !meta(PERMISSIONS_KEY) &&
+          !meta(ALLOW_ANY_AUTHENTICATED_KEY) &&
+          !meta(ALLOW_API_KEY_KEY) &&
+          !meta(IS_PUBLIC_KEY),
+      )
+      .map(({ route }) => route);
+    expect(ohne).toEqual([]);
+  });
+
+  it('API-Keys sind nur auf den bekannten Agent-/Integrationsrouten erlaubt', () => {
+    const mitApiKey = alle
+      .filter(({ meta }) => meta(ALLOW_API_KEY_KEY))
+      .map(({ route }) => route.split(' (')[0])
+      .sort();
+    expect(mitApiKey).toEqual(
+      [
+        'GET /api/label-print-agent/events',
+        'GET /api/label-print-agent/jobs/:id/image',
+        'GET /api/label-print-agent/jobs/next',
+        'POST /api/label-print-agent/jobs/:id/error',
+        'POST /api/label-print-agent/jobs/:id/printed',
+        'POST /api/paperless/checksum',
+        'POST /api/paperless/external-upload',
+        'POST /api/webhook/paperless',
+      ].sort(),
+    );
+  });
+});
diff --git a/paperless-backend/src/daily-digest/daily-digest.controller.ts b/paperless-backend/src/daily-digest/daily-digest.controller.ts
index 936fe9d..d92e33b 100644
--- a/paperless-backend/src/daily-digest/daily-digest.controller.ts
+++ b/paperless-backend/src/daily-digest/daily-digest.controller.ts
@@ -1,11 +1,13 @@
 import { Controller, Post, Request, HttpCode } from '@nestjs/common';
 import { DailyDigestService } from './daily-digest.service';
+import { AllowAnyAuthenticated } from '../auth/permissions.decorator';
 
 @Controller('api/daily-digest')
 export class DailyDigestController {
   constructor(private readonly dailyDigestService: DailyDigestService) {}
 
   @Post('send-now')
+  @AllowAnyAuthenticated()
   @HttpCode(200)
   async sendNow(@Request() req: any) {
     const { userId, email, preferredUsername, groups } = req.user;
diff --git a/paperless-backend/src/freigabe/freigabe.service.ts b/paperless-backend/src/freigabe/freigabe.service.ts
index f0562a8..183b565 100644
--- a/paperless-backend/src/freigabe/freigabe.service.ts
+++ b/paperless-backend/src/freigabe/freigabe.service.ts
@@ -3,8 +3,7 @@ import { InjectRepository } from '@nestjs/typeorm';
 import { Repository } from 'typeorm';
 import { DocumentType } from '../database/entities/document-type.entity';
 import { PaperlessService } from '../paperless/paperless.service';
-
-const FREIGABE_FIELD_ID = 15;
+import { FREIGABE_FIELD_ID } from '../paperless/status-felder.util';
 
 @Injectable()
 export class FreigabeService {
diff --git a/paperless-backend/src/inbox/clients.controller.ts b/paperless-backend/src/inbox/clients.controller.ts
index 8baa58b..588cf2d 100644
--- a/paperless-backend/src/inbox/clients.controller.ts
+++ b/paperless-backend/src/inbox/clients.controller.ts
@@ -3,6 +3,7 @@ import { InjectRepository } from '@nestjs/typeorm';
 import { Repository, In } from 'typeorm';
 import { Client } from '../database/entities/client.entity';
 import { UserClient } from '../database/entities/user-client.entity';
+import { AllowAnyAuthenticated } from '../auth/permissions.decorator';
 
 @Controller('api/clients')
 export class ClientsController {
@@ -15,6 +16,7 @@ export class ClientsController {
   ) {}
 
   @Get()
+  @AllowAnyAuthenticated()
   async getMyClients(@Request() req: any) {
     const userId = req.user.userId;
     const mappings = await this.userClientRepo.find({
diff --git a/paperless-backend/src/kontonummern/kontonummern.controller.ts b/paperless-backend/src/kontonummern/kontonummern.controller.ts
index 256db68..6bfb2db 100644
--- a/paperless-backend/src/kontonummern/kontonummern.controller.ts
+++ b/paperless-backend/src/kontonummern/kontonummern.controller.ts
@@ -1,6 +1,7 @@
-import { Controller, Get, Post, Body, Param, UseGuards } from '@nestjs/common';
+import { Controller, Get, Post, Body, Param } from '@nestjs/common';
 import { KontonummernService } from './kontonummern.service';
-import { JwtOrApiKeyGuard } from '../auth/jwt-or-apikey.guard';
+import { RequirePermissions } from '../auth/permissions.decorator';
+import { Permission } from '../auth/permissions.enum';
 
 export class CreateKontonummerDto {
   correspondentId: number;
@@ -8,7 +9,8 @@ export class CreateKontonummerDto {
 }
 
 @Controller('api/kontonummern')
-@UseGuards(JwtOrApiKeyGuard)
+// Bankverbindungen: nur für die Dokumentbearbeitung (Posteingang, manuell)
+@RequirePermissions(Permission.VIEW_INBOX, Permission.PROCESS_MANUALLY)
 export class KontonummernController {
   constructor(private readonly kontonummernService: KontonummernService) {}
 
diff --git a/paperless-backend/src/label-print-agent/label-print-agent.controller.ts b/paperless-backend/src/label-print-agent/label-print-agent.controller.ts
index 47ffeff..9e0288a 100644
--- a/paperless-backend/src/label-print-agent/label-print-agent.controller.ts
+++ b/paperless-backend/src/label-print-agent/label-print-agent.controller.ts
@@ -17,7 +17,7 @@ import {
 import type { Response } from 'express';
 import { Observable } from 'rxjs';
 import { map } from 'rxjs/operators';
-import { RequirePermissions } from '../auth/permissions.decorator';
+import { AllowApiKey, RequirePermissions } from '../auth/permissions.decorator';
 import { Permission } from '../auth/permissions.enum';
 import { LabelPrintAgentService } from './label-print-agent.service';
 
@@ -57,6 +57,8 @@ export class LabelPrintAgentController {
 
   // Agent: SSE-Stream für neue Druckaufträge
   @Sse('events')
+  @AllowApiKey()
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   sseEvents(
     @Res({ passthrough: true }) res: Response,
   ): Observable<MessageEvent> {
@@ -68,6 +70,8 @@ export class LabelPrintAgentController {
 
   // Agent: nächsten Job abholen (Polling)
   @Get('jobs/next')
+  @AllowApiKey()
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   async getNextJob(@Query('agentId') agentId: string, @Res() res: Response) {
     const job = await this.service.claimNextJob(agentId ?? 'unknown');
     if (!job) {
@@ -87,6 +91,8 @@ export class LabelPrintAgentController {
 
   // Agent: Bild separat abrufen
   @Get('jobs/:id/image')
+  @AllowApiKey()
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   async getImage(
     @Param('id', ParseIntPipe) id: number,
     @Res({ passthrough: true }) res: Response,
@@ -100,6 +106,8 @@ export class LabelPrintAgentController {
 
   // Agent: Druck erfolgreich
   @Post('jobs/:id/printed')
+  @AllowApiKey()
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   @HttpCode(HttpStatus.OK)
   async markPrinted(
     @Param('id', ParseIntPipe) id: number,
@@ -115,6 +123,8 @@ export class LabelPrintAgentController {
 
   // Agent: Druckfehler
   @Post('jobs/:id/error')
+  @AllowApiKey()
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   @HttpCode(HttpStatus.OK)
   async markError(
     @Param('id', ParseIntPipe) id: number,
diff --git a/paperless-backend/src/label-print-agent/label-print-agent.service.spec.ts b/paperless-backend/src/label-print-agent/label-print-agent.service.spec.ts
new file mode 100644
index 0000000..18f7475
--- /dev/null
+++ b/paperless-backend/src/label-print-agent/label-print-agent.service.spec.ts
@@ -0,0 +1,135 @@
+import { ConflictException } from '@nestjs/common';
+import { LabelPrintAgentService } from './label-print-agent.service';
+import type { LabelPrintJob } from '../database/entities/label-print-job.entity';
+import type { BarcodeTemplate } from '../database/entities/barcode-template.entity';
+import type { LabelRendererService } from './label-renderer.service';
+
+const TEMPLATE = {
+  Id: 7,
+  LabelEnabled: true,
+  LabelWidthMm: 57,
+  LabelHeightMm: 32,
+  LabelInputFields: [{ name: 'kunde', type: 'text' }],
+  LabelGetUrl: 'https://beleg.example/next?kunde={kunde}',
+  LabelPrintedUrl: 'https://beleg.example/printed/{number}?kunde={kunde}',
+  LabelReleaseUrl: 'https://beleg.example/release/{number}',
+} as unknown as BarcodeTemplate;
+
+function aufbau(job?: Partial<LabelPrintJob>) {
+  const gespeichert: Partial<LabelPrintJob>[] = [];
+  const jobRepo = {
+    findOne: jest.fn().mockResolvedValue(job ? { ...job } : null),
+    create: jest.fn((j: Partial<LabelPrintJob>) => j),
+    save: jest.fn((j: Partial<LabelPrintJob>) => {
+      gespeichert.push({ ...j });
+      return Promise.resolve(j);
+    }),
+    update: jest.fn().mockResolvedValue({ affected: 1 }),
+  };
+  const templateRepo = { findOne: jest.fn().mockResolvedValue(TEMPLATE) };
+  const service = new LabelPrintAgentService(
+    jobRepo as never,
+    templateRepo as never,
+    {} as LabelRendererService,
+  );
+  return { service, jobRepo, gespeichert };
+}
+
+const fetchMock = jest.fn();
+beforeEach(() => {
+  fetchMock.mockReset();
+  fetchMock.mockResolvedValue({ text: () => Promise.resolve('2026-0042') });
+  global.fetch = fetchMock as unknown as typeof fetch;
+});
+
+const BASIS = {
+  Id: 1,
+  BarcodeTemplateId: 7,
+  LabelVariables: { number: '2026-0042', kunde: 'Hof' },
+};
+const gesperrt = { ...BASIS, Status: 'pending' as const, LockedAt: new Date() };
+
+describe('LabelPrintAgentService – Statusübergänge', () => {
+  it('printed: nur für abgeholte, offene Jobs – ruft dann die Printed-URL auf', async () => {
+    const { service, jobRepo } = aufbau(gesperrt);
+    await service.markPrinted(1, 'agent', 'drucker');
+    expect(jobRepo.update).toHaveBeenCalledWith(
+      expect.objectContaining({ Id: 1, Status: 'pending' }),
+      expect.objectContaining({ Status: 'printed' }),
+    );
+    expect(fetchMock).toHaveBeenCalledTimes(1);
+  });
+
+  it('printed: erneute Meldung ist ein No-op ohne zweiten Callback', async () => {
+    const { service, jobRepo } = aufbau({ ...BASIS, Status: 'printed' });
+    await service.markPrinted(1, 'agent', 'drucker');
+    expect(jobRepo.update).not.toHaveBeenCalled();
+    expect(fetchMock).not.toHaveBeenCalled();
+  });
+
+  it('error nach printed wird abgelehnt – keine Freigabe der vergebenen Nummer', async () => {
+    const { service } = aufbau({ ...BASIS, Status: 'printed' });
+    await expect(service.markError(1, 'a', 'd', 'x')).rejects.toThrow(
+      ConflictException,
+    );
+    expect(fetchMock).not.toHaveBeenCalled();
+  });
+
+  it('printed/error für noch nicht abgeholte Jobs werden abgelehnt', async () => {
+    const offen = { ...BASIS, Status: 'pending' as const, LockedAt: null };
+    await expect(
+      aufbau(offen).service.markPrinted(1, 'a', 'd'),
+    ).rejects.toThrow(ConflictException);
+    await expect(
+      aufbau(offen).service.markError(1, 'a', 'd', 'x'),
+    ).rejects.toThrow(ConflictException);
+  });
+
+  it('gleichzeitige Meldung: verliert das bedingte Update, gibt es keinen Callback', async () => {
+    const { service, jobRepo } = aufbau(gesperrt);
+    jobRepo.update.mockResolvedValue({ affected: 0 });
+    await expect(service.markError(1, 'a', 'd', 'x')).rejects.toThrow(
+      ConflictException,
+    );
+    expect(fetchMock).not.toHaveBeenCalled();
+  });
+
+  it('error für abgeholte Jobs gibt die Nummer frei', async () => {
+    const { service } = aufbau(gesperrt);
+    await service.markError(1, 'a', 'd', 'Papierstau');
+    expect(fetchMock).toHaveBeenCalledWith(
+      'https://beleg.example/release/2026-0042',
+      { method: 'POST' },
+    );
+  });
+});
+
+describe('LabelPrintAgentService.createJob – Feldwerte', () => {
+  it('übernimmt nur Felder der Vorlage – "number" kann nicht vorgegeben werden', async () => {
+    fetchMock.mockResolvedValue({ text: () => Promise.resolve('') });
+    const { service, gespeichert } = aufbau();
+    await service.createJob(7, { kunde: 'Hof', number: '1234', fremd: 'x' });
+    const vars = gespeichert[0].LabelVariables as Record<string, string>;
+    expect(vars).toEqual({ kunde: 'Hof', number: '' });
+  });
+
+  it('kodiert Feldwerte in URLs', async () => {
+    const { service } = aufbau();
+    await service.createJob(7, { kunde: 'a/../admin?x=1#' });
+    expect(fetchMock).toHaveBeenCalledWith(
+      'https://beleg.example/next?kunde=a%2F..%2Fadmin%3Fx%3D1%23',
+    );
+  });
+
+  it('kodiert auch die Nummer im Printed-Callback', async () => {
+    const { service } = aufbau({
+      ...gesperrt,
+      LabelVariables: { number: '../../x', kunde: 'A B' },
+    });
+    await service.markPrinted(1, 'a', 'd');
+    expect(fetchMock).toHaveBeenCalledWith(
+      'https://beleg.example/printed/..%2F..%2Fx?kunde=A%20B',
+      { method: 'POST' },
+    );
+  });
+});
diff --git a/paperless-backend/src/label-print-agent/label-print-agent.service.ts b/paperless-backend/src/label-print-agent/label-print-agent.service.ts
index 617bba2..dc371f4 100644
--- a/paperless-backend/src/label-print-agent/label-print-agent.service.ts
+++ b/paperless-backend/src/label-print-agent/label-print-agent.service.ts
@@ -3,9 +3,10 @@ import {
   Logger,
   NotFoundException,
   BadRequestException,
+  ConflictException,
 } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
-import { Repository, LessThan, IsNull } from 'typeorm';
+import { Repository, LessThan, IsNull, Not } from 'typeorm';
 import { Subject, Observable } from 'rxjs';
 import { LabelPrintJob } from '../database/entities/label-print-job.entity';
 import { BarcodeTemplate } from '../database/entities/barcode-template.entity';
@@ -20,17 +21,22 @@ function isSafeUrl(url: string): boolean {
   }
 }
 
-function applyVars(template: string, vars: Record<string, string>): string {
+/**
+ * Setzt `{name}` bzw. `{name:breite}` in eine URL-Vorlage ein. Die Werte
+ * stammen teils vom Benutzer bzw. aus einer externen Antwort und werden
+ * deshalb URL-kodiert – sonst ließe sich Pfad oder Query der Admin-URL ändern.
+ */
+function applyUrlVars(template: string, vars: Record<string, string>): string {
   return template.replace(/\{([^}]+)\}/g, (_, key: string) => {
     const colonIdx = key.indexOf(':');
     if (colonIdx !== -1) {
       const varName = key.slice(0, colonIdx);
       const width = parseInt(key.slice(colonIdx + 1), 10);
       if (!isNaN(width) && varName in vars) {
-        return vars[varName].padStart(width, '0');
+        return encodeURIComponent(vars[varName].padStart(width, '0'));
       }
     }
-    return vars[key] ?? '';
+    return encodeURIComponent(vars[key] ?? '');
   });
 }
 
@@ -70,13 +76,20 @@ export class LabelPrintAgentService {
         'Etikett-Druck für dieses Template nicht aktiviert',
       );
 
-    // Variablen aufbauen
-    const vars: Record<string, string> = { ...fieldValues };
+    // Variablen aufbauen – nur Eingabefelder der Vorlage. Abgeleitete Werte
+    // wie {number} (aus der GET-URL) darf der Aufrufer nicht vorgeben.
+    const vars: Record<string, string> = {};
+    for (const field of template.LabelInputFields ?? []) {
+      const wert: unknown = fieldValues?.[field.name];
+      if (typeof wert === 'string' || typeof wert === 'number') {
+        vars[field.name] = String(wert);
+      }
+    }
 
     // Datum-Felder: year/month/day separat ablegen
     for (const field of template.LabelInputFields ?? []) {
-      if (field.type === 'date' && fieldValues[field.name]) {
-        const raw = fieldValues[field.name]; // erwartet YYYY-MM-DD
+      if (field.type === 'date' && vars[field.name]) {
+        const raw = vars[field.name]; // erwartet YYYY-MM-DD
         const parts = raw.split('-');
         if (parts.length === 3) {
           vars[field.name] = `${parts[2]}.${parts[1]}.${parts[0]}`; // dd.MM.yyyy
@@ -89,7 +102,7 @@ export class LabelPrintAgentService {
 
     // GET-URL aufrufen → {number}
     if (template.LabelGetUrl) {
-      const url = applyVars(template.LabelGetUrl, vars);
+      const url = applyUrlVars(template.LabelGetUrl, vars);
       if (isSafeUrl(url)) {
         try {
           const res = await fetch(url);
@@ -170,15 +183,15 @@ export class LabelPrintAgentService {
     agentId: string,
     printerName: string,
   ): Promise<void> {
-    const job = await this.jobRepo.findOne({ where: { Id: jobId } });
-    if (!job) throw new NotFoundException('Job nicht gefunden');
-
-    job.Status = 'printed';
-    job.PrintedAt = new Date();
-    job.PrintedByAgent = agentId;
-    job.PrinterName = printerName;
-    await this.jobRepo.save(job);
-
+    const job = await this.ladeJob(jobId);
+    // Wiederholte Meldung (z.B. Retry nach Netzfehler): nichts mehr tun.
+    if (job.Status === 'printed') return;
+    await this.schliesseJobAb(job, {
+      Status: 'printed',
+      PrintedAt: new Date(),
+      PrintedByAgent: agentId,
+      PrinterName: printerName,
+    });
     await this.callUrl('PRINTED', job);
   }
 
@@ -188,16 +201,45 @@ export class LabelPrintAgentService {
     printerName: string,
     errorMessage: string,
   ): Promise<void> {
+    const job = await this.ladeJob(jobId);
+    if (job.Status === 'error') return;
+    await this.schliesseJobAb(job, {
+      Status: 'error',
+      PrintedByAgent: agentId,
+      PrinterName: printerName,
+      ErrorMessage: errorMessage,
+    });
+    // Gibt die reservierte Nummer frei – darf nur für nie gedruckte Jobs passieren.
+    await this.callUrl('RELEASE', job);
+  }
+
+  private async ladeJob(jobId: number): Promise<LabelPrintJob> {
     const job = await this.jobRepo.findOne({ where: { Id: jobId } });
     if (!job) throw new NotFoundException('Job nicht gefunden');
+    return job;
+  }
 
-    job.Status = 'error';
-    job.PrintedByAgent = agentId;
-    job.PrinterName = printerName;
-    job.ErrorMessage = errorMessage;
-    await this.jobRepo.save(job);
-
-    await this.callUrl('RELEASE', job);
+  /**
+   * Abschluss nur für abgeholte, noch offene Jobs – bedingt in der DB, damit
+   * bei gleichzeitigen Meldungen genau eine gewinnt und nur ein Callback läuft.
+   */
+  private async schliesseJobAb(
+    job: LabelPrintJob,
+    aenderung: Partial<LabelPrintJob>,
+  ): Promise<void> {
+    if (job.Status !== 'pending' || !job.LockedAt) {
+      throw new ConflictException(
+        `Job ${job.Id} ist nicht in Bearbeitung (Status: ${job.Status})`,
+      );
+    }
+    const { affected } = await this.jobRepo.update(
+      { Id: job.Id, Status: 'pending', LockedAt: Not(IsNull()) },
+      aenderung,
+    );
+    if (!affected) {
+      throw new ConflictException(`Job ${job.Id} wurde bereits abgeschlossen`);
+    }
+    Object.assign(job, aenderung);
   }
 
   async renderPreview(
@@ -248,7 +290,7 @@ export class LabelPrintAgentService {
       type === 'PRINTED' ? template.LabelPrintedUrl : template.LabelReleaseUrl;
     if (!urlTemplate) return;
 
-    const url = applyVars(urlTemplate, job.LabelVariables ?? {});
+    const url = applyUrlVars(urlTemplate, job.LabelVariables ?? {});
     if (!isSafeUrl(url)) {
       this.logger.warn(
         `${type}-URL übersprungen (ungültiges Protokoll): ${url}`,
diff --git a/paperless-backend/src/paperless/paperless.controller.ts b/paperless-backend/src/paperless/paperless.controller.ts
index d62d796..b75cd16 100644
--- a/paperless-backend/src/paperless/paperless.controller.ts
+++ b/paperless-backend/src/paperless/paperless.controller.ts
@@ -19,8 +19,9 @@ import {
   Request,
 } from '@nestjs/common';
 import type { Response } from 'express';
-import { RequirePermissions } from '../auth/permissions.decorator';
+import { AllowApiKey, RequirePermissions } from '../auth/permissions.decorator';
 import { Permission } from '../auth/permissions.enum';
+import { entferneGeschuetzteStatusfelder } from './status-felder.util';
 
 import { FileInterceptor } from '@nestjs/platform-express';
 import { InjectRepository } from '@nestjs/typeorm';
@@ -71,11 +72,14 @@ export class PaperlessController {
   }
 
   @Get('steuertags')
+  @RequirePermissions(Permission.VIEW_INBOX, Permission.PROCESS_MANUALLY)
   async getSteuertags() {
     return { ids: await this.getSteuertagIds() };
   }
 
   @Post('checksum')
+  @AllowApiKey()
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   async checksumExists(@Body('checksum') checksum: string) {
     const exists = await this.paperlessService.checksumExists(checksum);
     return { exists };
@@ -89,6 +93,7 @@ export class PaperlessController {
   }
 
   @Get('documents')
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   async getDocuments(
     @Query('search') search?: string,
     @Query('page') page?: string,
@@ -105,16 +110,19 @@ export class PaperlessController {
   }
 
   @Get('documents/:id')
+  @RequirePermissions(Permission.VIEW_INBOX, Permission.PROCESS_MANUALLY)
   async getDocument(@Param('id') id: string) {
     return this.paperlessService.getDocument(parseInt(id, 10));
   }
 
   @Get('tags')
+  @RequirePermissions(Permission.VIEW_INBOX, Permission.PROCESS_MANUALLY)
   async getTags() {
     return this.paperlessService.getTags();
   }
 
   @Get('tags/:id')
+  @RequirePermissions(Permission.VIEW_INBOX, Permission.PROCESS_MANUALLY)
   async getTag(@Param('id') id: string) {
     // If the service doesn't have getTag(id), I should add it or just fetch all and find
     const tags = await this.paperlessService.getTags();
@@ -122,11 +130,18 @@ export class PaperlessController {
   }
 
   @Get('document-types')
+  @RequirePermissions(
+    Permission.VIEW_INBOX,
+    Permission.PROCESS_MANUALLY,
+    Permission.VIEW_FREIGABE,
+    Permission.VIEW_ZAHLUNG,
+  )
   async getDocumentTypes() {
     return this.paperlessService.getDocumentTypes();
   }
 
   @Get('custom-fields')
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   async getCustomFields() {
     return this.paperlessService.getCustomFields();
   }
@@ -138,6 +153,13 @@ export class PaperlessController {
   }
 
   @Get('correspondents')
+  @RequirePermissions(
+    Permission.VIEW_INBOX,
+    Permission.PROCESS_MANUALLY,
+    Permission.VIEW_MAIL,
+    Permission.VIEW_FREIGABE,
+    Permission.VIEW_ZAHLUNG,
+  )
   async getCorrespondents(@Query('search') search?: string) {
     const params: any = { page_size: 9999 };
     if (search) {
@@ -148,6 +170,7 @@ export class PaperlessController {
   }
 
   @Get('correspondents/:id')
+  @RequirePermissions(Permission.VIEW_INBOX, Permission.PROCESS_MANUALLY)
   async getCorrespondent(@Param('id') id: string) {
     return this.paperlessService.getCorrespondent(parseInt(id, 10));
   }
@@ -252,6 +275,7 @@ export class PaperlessController {
   }
 
   @Get('requirements/:id')
+  @RequirePermissions(Permission.VIEW_INBOX, Permission.PROCESS_MANUALLY)
   async getRequirements(
     @Param('id') id: string,
     @Query('Posteingang') posteingang: string,
@@ -347,8 +371,24 @@ export class PaperlessController {
 
   @Put('inbox/:id')
   @RequirePermissions(Permission.VIEW_INBOX)
-  async putInboxDocument(@Param('id') id: string, @Body() body: any) {
+  async putInboxDocument(
+    @Param('id') id: string,
+    @Body() body: any,
+    @Request()
+    req: { user?: { permissions?: Permission[]; preferredUsername?: string } },
+  ) {
     const documentId = parseInt(id, 10);
+
+    const { felder, entfernt } = entferneGeschuetzteStatusfelder(
+      body.customFields as Record<string, unknown> | undefined,
+      req.user?.permissions ?? [],
+    );
+    if (entfernt.length) {
+      this.logger.warn(
+        `Dokument ${documentId}: Statusfeld(er) ${entfernt.join(', ')} ohne Berechtigung ignoriert (${req.user?.preferredUsername ?? 'unbekannt'})`,
+      );
+    }
+    body.customFields = felder;
     // Fetch from paperless
     const oldDocument = await this.paperlessService.getDocument(documentId);
 
@@ -539,6 +579,7 @@ export class PaperlessController {
   }
 
   @Post('external-upload')
+  @AllowApiKey()
   @UseGuards(ApiKeyGuard)
   @UseInterceptors(FileInterceptor('document'))
   async externalUpload(
diff --git a/paperless-backend/src/paperless/status-felder.util.spec.ts b/paperless-backend/src/paperless/status-felder.util.spec.ts
new file mode 100644
index 0000000..60ed179
--- /dev/null
+++ b/paperless-backend/src/paperless/status-felder.util.spec.ts
@@ -0,0 +1,45 @@
+import { Permission } from '../auth/permissions.enum';
+import {
+  FREIGABE_FIELD_ID,
+  ZAHLUNG_FIELD_ID,
+  entferneGeschuetzteStatusfelder,
+} from './status-felder.util';
+
+describe('entferneGeschuetzteStatusfelder', () => {
+  const felder = {
+    [FREIGABE_FIELD_ID]: 'freigegeben',
+    [ZAHLUNG_FIELD_ID]: 'bezahlt',
+    3: 'Rechnungsnummer',
+  };
+
+  it('entfernt Freigabe und Zahlung für die Posteingangs-Rolle', () => {
+    expect(
+      entferneGeschuetzteStatusfelder(felder, [Permission.VIEW_INBOX]),
+    ).toEqual({ felder: { 3: 'Rechnungsnummer' }, entfernt: [15, 16] });
+  });
+
+  it('lässt jeder Rolle nur ihr eigenes Statusfeld', () => {
+    expect(
+      entferneGeschuetzteStatusfelder(felder, [
+        Permission.VIEW_INBOX,
+        Permission.VIEW_FREIGABE,
+      ]).felder,
+    ).toEqual({ 15: 'freigegeben', 3: 'Rechnungsnummer' });
+    expect(
+      entferneGeschuetzteStatusfelder(felder, [Permission.VIEW_ZAHLUNG]).felder,
+    ).toEqual({ 16: 'bezahlt', 3: 'Rechnungsnummer' });
+  });
+
+  it('lässt Admins alles', () => {
+    expect(
+      entferneGeschuetzteStatusfelder(felder, [Permission.MANAGE_ALL]),
+    ).toEqual({ felder, entfernt: [] });
+  });
+
+  it('kommt mit fehlenden Feldern klar', () => {
+    expect(entferneGeschuetzteStatusfelder(undefined, [])).toEqual({
+      felder: undefined,
+      entfernt: [],
+    });
+  });
+});
diff --git a/paperless-backend/src/paperless/status-felder.util.ts b/paperless-backend/src/paperless/status-felder.util.ts
new file mode 100644
index 0000000..cb2e230
--- /dev/null
+++ b/paperless-backend/src/paperless/status-felder.util.ts
@@ -0,0 +1,34 @@
+import { Permission } from '../auth/permissions.enum';
+
+/** Paperless-Custom-Field „Freigabe“ – setzen darf es nur die Freigabe-Rolle. */
+export const FREIGABE_FIELD_ID = 15;
+/** Paperless-Custom-Field „Zahlung“ – setzen darf es nur die Zahlungs-Rolle. */
+export const ZAHLUNG_FIELD_ID = 16;
+
+const SCHUTZ: [number, Permission][] = [
+  [FREIGABE_FIELD_ID, Permission.VIEW_FREIGABE],
+  [ZAHLUNG_FIELD_ID, Permission.VIEW_ZAHLUNG],
+];
+
+/**
+ * Entfernt Freigabe-/Zahlungsfeld aus einer Custom-Field-Änderung, wenn der
+ * Benutzer die zugehörige Rolle nicht hat (Funktionstrennung: wer Belege im
+ * Posteingang bearbeitet, darf sie nicht zugleich freigeben oder bezahlen).
+ */
+export function entferneGeschuetzteStatusfelder<T>(
+  felder: Record<string, T> | undefined,
+  permissions: Permission[],
+): { felder: Record<string, T> | undefined; entfernt: number[] } {
+  if (!felder || permissions.includes(Permission.MANAGE_ALL)) {
+    return { felder, entfernt: [] };
+  }
+  const ergebnis = { ...felder };
+  const entfernt: number[] = [];
+  for (const [feldId, recht] of SCHUTZ) {
+    if (String(feldId) in ergebnis && !permissions.includes(recht)) {
+      delete ergebnis[String(feldId)];
+      entfernt.push(feldId);
+    }
+  }
+  return { felder: ergebnis, entfernt };
+}
diff --git a/paperless-backend/src/stats/stats.controller.ts b/paperless-backend/src/stats/stats.controller.ts
index 2074362..634da3a 100644
--- a/paperless-backend/src/stats/stats.controller.ts
+++ b/paperless-backend/src/stats/stats.controller.ts
@@ -1,11 +1,13 @@
 import { Controller, Get, Request } from '@nestjs/common';
 import { StatsService } from './stats.service';
+import { AllowAnyAuthenticated } from '../auth/permissions.decorator';
 
 @Controller('api/stats')
 export class StatsController {
   constructor(private readonly statsService: StatsService) {}
 
   @Get('counts')
+  @AllowAnyAuthenticated()
   async getCounts(@Request() req: any) {
     return this.statsService.getDashboardCounts(req.user?.preferredUsername);
   }
diff --git a/paperless-backend/src/user-settings/user-settings.controller.ts b/paperless-backend/src/user-settings/user-settings.controller.ts
index 145b3f2..41ac186 100644
--- a/paperless-backend/src/user-settings/user-settings.controller.ts
+++ b/paperless-backend/src/user-settings/user-settings.controller.ts
@@ -8,7 +8,10 @@ import {
   Request,
 } from '@nestjs/common';
 import { UserSettingsService } from './user-settings.service';
-import { RequirePermissions } from '../auth/permissions.decorator';
+import {
+  AllowAnyAuthenticated,
+  RequirePermissions,
+} from '../auth/permissions.decorator';
 import { Permission } from '../auth/permissions.enum';
 
 @Controller('api/user-settings')
@@ -16,16 +19,19 @@ export class UserSettingsController {
   constructor(private readonly userSettingsService: UserSettingsService) {}
 
   @Get()
+  @AllowAnyAuthenticated()
   async getSettings(@Request() req: any) {
     return this.userSettingsService.getSettings(req.user.userId);
   }
 
   @Put()
+  @AllowAnyAuthenticated()
   async updateSettings(@Request() req: any, @Body() body: any) {
     return this.userSettingsService.updateSettings(req.user.userId, body);
   }
 
   @Get('senders')
+  @AllowAnyAuthenticated()
   async getSenders(@Request() req: any) {
     return this.userSettingsService.getAvailableSenders(req.user.userId);
   }
diff --git a/paperless-backend/src/webhook/webhook.controller.ts b/paperless-backend/src/webhook/webhook.controller.ts
index 07eb00e..764b944 100644
--- a/paperless-backend/src/webhook/webhook.controller.ts
+++ b/paperless-backend/src/webhook/webhook.controller.ts
@@ -11,6 +11,8 @@ import {
 } from '@nestjs/common';
 import { ApiKeyGuard } from '../auth/api-key.guard';
 import { WebhookQueueService } from './webhook-queue.service';
+import { AllowApiKey, RequirePermissions } from '../auth/permissions.decorator';
+import { Permission } from '../auth/permissions.enum';
 
 export interface PaperlessWebhookPayload {
   doc_url?: string;
@@ -27,6 +29,7 @@ export class WebhookController {
 
   @UseGuards(ApiKeyGuard)
   @Post('paperless')
+  @AllowApiKey()
   @HttpCode(HttpStatus.OK)
   async handlePaperlessWebhook(@Body() payload: PaperlessWebhookPayload) {
     const documentId = this.extractDocumentId(payload);
@@ -59,6 +62,7 @@ export class WebhookController {
    * per JWT oder API-Key zugänglich.
    */
   @Get('status')
+  @RequirePermissions(Permission.MANAGE_SETTINGS)
   async getWebhookStatus(): Promise<{ lastCall: unknown; queueSize: number }> {
     return this.webhookQueue.getStatus();
   }
diff --git a/paperless-backend/src/zahlung/zahlung.service.ts b/paperless-backend/src/zahlung/zahlung.service.ts
index aeb8fbc..a5b48c4 100644
--- a/paperless-backend/src/zahlung/zahlung.service.ts
+++ b/paperless-backend/src/zahlung/zahlung.service.ts
@@ -3,9 +3,11 @@ import { InjectRepository } from '@nestjs/typeorm';
 import { Repository } from 'typeorm';
 import { DocumentType } from '../database/entities/document-type.entity';
 import { PaperlessService } from '../paperless/paperless.service';
+import {
+  FREIGABE_FIELD_ID,
+  ZAHLUNG_FIELD_ID,
+} from '../paperless/status-felder.util';
 
-const FREIGABE_FIELD_ID = 15;
-const ZAHLUNG_FIELD_ID = 16;
 const FREIGABE_WERT_FREIGEGEBEN = 'freigegeben';
 
 export type ZahlungFilter = 'ausstehend' | 'freigegeben' | 'alle';