pentester.land· Jul 28, 2021· by Sunil Yedla (@sunilyedla2)

Information Disclosure to Account Takeover

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'.

#Information disclosure#OAuth#Account takeover#Authentication bypass