excalidraw-box/.jules/sentinel.md

2024-06-06 - Missing HTTP Security Headers

Vulnerability: The Caddyfile configuration was missing standard HTTP security headers (X-Frame-Options, X-Content-Type-Options, Referrer-Policy), leaving the application susceptible to clickjacking, MIME-type sniffing, and sensitive data leakage via referrers. Learning: The application relies on Caddy as a reverse proxy, and by default, Caddy doesn't automatically add these specific security headers unless explicitly configured. Prevention: Ensure that reverse proxy configurations in new projects or updates to existing ones explicitly include essential HTTP security headers in a global scope to protect all served content.