17 Endpoints, Zero Logins Required: Broken Access Control in AI-Built Apps
We handed four vibe-coding tools (Emergent, Replit, Lovable, Base44) the same prompt for a FastAPI user-management microservice. The spec was explicit: JWT auth, parameterized queries, rate limiting, four-tier role model with per-endpoint scope. Each tool shipped a build, and our flagship autonomous pentest surfaced 137 confirmed vulnerabilities across all four.