The Secure Code Review Challenge — Solution #6: 📥 FileDrop (Username Is User Input Too)
FileDrop looks like a textbook example of a well-built Node app: bcrypt, JWT with a pinned algorithm,...
🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass
💡 Defense Fix: Strictly verify JWT signatures on the backend, enforce state parameter validation, and reject 'alg: none'.