Vulnerability · Published Aug 25, 2026 · Assigned by TYPO3
CVE-2026-77133Broken Access Control in extension "femanager" (femanager)
Medium 6.0
In plain English
A medium-severity missing authorization in Extension "femanager" from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 4.0)6.0Medium
Exploit odds (30 days)0.4%top 71.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The extension fails to restrict which frontend usergroups a logged-in user may assign to their own account when the profile edit plugin uses its default field configuration, allowing self-service privilege escalation into arbitrary frontend groups.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TYPO3 | Extension "femanager" | 13.0.0 – before 13.3.58.0.0 – before 8.4.27.0.0 – before 7.5.50 – before 6.4.5 |
Weakness: CWE-862 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-024 vendor-advisory