JSON Web Token (JWT) Vulnerability

By
Anandhu Krishnan
Published on
14 May 2024
Vulnerability

Description

A vulnerability that allows attackers to bypass authentication mechanisms by exploiting weaknesses in JSON Web Token (JWT) implementations.

Recommendation

Implement additional validation and sanitization of JWT claims to ensure their authenticity, integrity, and consistency with the expected values. Furthermore, consider using a secure token store and revoking access tokens when they are no longer valid or have expired.

Automated human-like penetration testing for your web apps & APIs
Teams using Beagle Security are set up in minutes, embrace release-based CI/CD security testing and save up to 65% with timely remediation of vulnerabilities. Sign up for a free account to see what it can do for you.

Written by
Anandhu Krishnan
Anandhu Krishnan
Lead Engineer
Experience the Beagle Security platform
Unlock one full penetration test and all Advanced plan features free for 10 days
Find surface-level website security issues in under a minute
Free website security assessment
Experience the power of automated penetration testing & contextual reporting.