Auth bypass in Typo3 Extension "Frontend User Registration"
CVE-2026-46721
The create and edit flows do not restrict which user properties may be submitted and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly regis…
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.001 (21.4th percentile) — read the EPSS interpretation.
Affected products
- Typo3 Extension "Frontend User Registration" — versions 14.0.0, 0
Weakness classification (CWE)
References
- f4fb688c-4412-4426-b4b8-421ecf27b14a (vendor-advisory)