pentester.land· Apr 19, 2023· by Timo Müller (@mtimo44)🔍 CVE-2023-0264

Vulnerability Spotlight: CVE-2023-0264

Target Program: Keycloak

🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass

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

#OIDC#OAuth#Broken authentication#Privilege escalation#Security code review#CVE-2023-0264