pentester.land· Oct 4, 2022· by Vaibhav Lakhani, Dhir Parmar

Bugcrowd — Tale of multiple misconfigurations!! ❌

Target Program: -

🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass

💡 Defense Fix: Strictly verify JWT signatures on the backend, enforce state parameter validation, and reject 'alg: none'.

#Account takeover#OAuth#OTP bypass#Password reset