🛡️ Sentinel: [HIGH] Add security headers middleware #37
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- Implemented `createSecurityMiddleware` to add X-Content-Type-Options, X-Frame-Options, Referrer-Policy, and Content-Security-Policy. - Integrated middleware in `WebUIManager.ts`. - Added unit tests for the middleware. - Configured CSP to be compatible with GridStack (inline styles) and video streaming (WebSocket/HLS).
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🚨 Severity: HIGH
💡 Vulnerability: Missing security headers (CSP, X-Frame-Options, etc.) which leaves the application vulnerable to XSS, Clickjacking, and MIME sniffing.
🎯 Impact: Attackers could potentially embed the WebUI in a malicious site (Clickjacking), execute malicious scripts (XSS), or trick the browser into interpreting files as a different MIME type.
🔧 Fix: Implemented a new security middleware that sets strict headers while allowing necessary functionality (inline scripts/styles for UI lib, WebSocket/Data URI for video).
✅ Verification: Added unit tests verifying headers are present. Checked integration in
WebUIManager.ts.PR created automatically by Jules for task 7198769802738215504 started by @GhostTypes