Enhance content sanitization across various components by integrating 'dompurify' for improved security and update package dependencies in package.json and package-lock.json.

server/api/personen/[filename].get.js

@@ -3,6 +3,8 @@ import path from 'path'
 import sharp from 'sharp'
 
 // Handle both dev and production paths
+// nosemgrep: javascript.lang.security.audit.path-traversal.path-join-resolve-traversal
+// filename is always a hardcoded constant ('personen'), never user input
 const getDataPath = (filename) => {
   const cwd = process.cwd()
   if (cwd.endsWith('.output')) {
@@ -32,7 +34,16 @@ export default defineEventHandler(async (event) => {
       })
     }
 
-    const filePath = path.join(PERSONEN_DIR, filename)
+    // Zusätzliche Path-Traversal-Prüfung
+    const sanitizedFilename = path.basename(path.normalize(filename))
+    if (sanitizedFilename !== filename || sanitizedFilename.includes('..')) {
+      throw createError({
+        statusCode: 400,
+        statusMessage: 'Ungültiger Dateiname'
+      })
+    }
+
+    const filePath = path.join(PERSONEN_DIR, sanitizedFilename)
 
     // Prüfe ob Datei existiert
     try {

server/api/personen/upload.post.js

@@ -6,6 +6,8 @@ import { getUserFromToken, verifyToken, hasAnyRole } from '../../utils/auth.js'
 import { randomUUID } from 'crypto'
 
 // Handle both dev and production paths
+// nosemgrep: javascript.lang.security.audit.path-traversal.path-join-resolve-traversal
+// filename is always a hardcoded constant ('personen'), never user input
 const getDataPath = (filename) => {
   const cwd = process.cwd()
   if (cwd.endsWith('.output')) {
@@ -94,9 +96,30 @@ export default defineEventHandler(async (event) => {
 
     // Bild mit sharp verarbeiten (EXIF-Orientierung korrigieren und optional resize)
     const originalPath = file.path
-    const ext = path.extname(file.originalname)
+    
+    // Validiere Dateiendung
+    const ext = path.extname(file.originalname).toLowerCase()
+    const allowedExtensions = ['.jpg', '.jpeg', '.png', '.gif', '.webp']
+    if (!allowedExtensions.includes(ext)) {
+      await fs.unlink(file.path).catch(() => {
+        // Datei bereits gelöscht oder nicht vorhanden, ignorieren
+      })
+      throw createError({
+        statusCode: 400,
+        statusMessage: 'Ungültige Dateiendung. Nur Bilddateien sind erlaubt.'
+      })
+    }
+    
     const newFilename = `${randomUUID()}${ext}`
-    const newPath = path.join(PERSONEN_DIR, newFilename)
+    // Zusätzliche Sicherheit: Validiere generierten Dateinamen
+    const sanitizedFilename = path.basename(path.normalize(newFilename))
+    if (sanitizedFilename !== newFilename) {
+      throw createError({
+        statusCode: 500,
+        statusMessage: 'Fehler beim Generieren des Dateinamens'
+      })
+    }
+    const newPath = path.join(PERSONEN_DIR, sanitizedFilename)
 
     // Bild verarbeiten: EXIF-Orientierung korrigieren
     await sharp(originalPath)