pentester.land· Feb 13, 2021· by Yasser Mohammed (@boomneroli)

OAuth Misconfiguration Leads to Full 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'.

#OAuth#Clickjacking#CSRF#Account takeover