FUXA has JWT Authentication Bypass via HTTP Referer header spoofing

Description

FUXA 1.2.8 and prior contains an Authentication Bypass vulnerability leading to Remote Code Execution (RCE). The vulnerability exists in the server/api/jwt-helper.js middleware, which improperly trusts the HTTP “Referer” header to validate internal requests.

Recommendation

No fix is available yet. Followings are affected versions:

• <= 1.2.8

References

• GHSA-4r4r-4jp4-wwf9
• CVE-2025-69985
• CWE-288
• CAPEC-310
• OWASP 2021-A6
• OWASP 2021-A7

Related Issues

• Astro has an Authentication Bypass via Double URL Encoding, a bypass for CVE-2025-64765 - CVE-2025-66202
• SillyTavern has Authentication Bypass via SSO Header Injection - CVE-2026-44649
• FUXA has a hardcoded fallback JWT signing secret - CVE-2025-69971
• LobeHub: Unauthenticated authentication bypass on `webapi` routes via forgeable `X-lobe-chat-auth` header - CVE-2026-39411

You might also like:

How do hackers hack websites?

Apache and Express Path Traversal plus Nginx Restriction Bypass Tests with SmartScanner

Update Cheat Sheet for Developers

Tags:

npm

@frangoteam/fuxa