pentester.land· May 4, 2023· by Colin McQueen

Privilege Escalations through Integrations

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'.

#Privilege escalation#Amazon cognito misconfiguration#JWT#Account takeover