dev.to· Sep 9, 2026· by rivenx173

Silent HMAC Key Contamination: Uncovering a Logic Flaw in Burp's JWT Editor Extension

Open Original Article ↗
How a failing Web Security Academy lab led to a root-cause analysis of a hidden bug JWT...
🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass
💡 Defense Fix: Strictly verify JWT signatures on the backend, enforce state parameter validation, and reject 'alg: none'.
#cybersecurity#security#java#webdev