CVE-2026-77146

Broken Access Control in extension "femanager" (femanager)

Published Aug 25, 2026 CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
Description
The extension's invitation controller fails to stop processing after redirecting on invalid input (missing hash, non-existent, disabled, or deleted users), allowing an unauthenticated attacker to set a new password for and re-enable an arbitrary existing frontend user account. This vulnerability is only present in the 8.x versions of the extension.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Typo3
Typo3 extension "femanager"
Vendors & Products Typo3
Typo3 extension "femanager"
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The extension's invitation controller fails to stop processing after redirecting on invalid input (missing hash, non-existent, disabled, or deleted users), allowing an unauthenticated attacker to set a new password for and re-enable an arbitrary existing frontend user account. This vulnerability is only present in the 8.x versions of the extension.
Title Broken Access Control in extension "femanager" (femanager)
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TYPO3
Published
Updated
Aug 25, 2026, 2:51 PM
Reserved
Aug 20, 2026, 1:10 PM
Status
Deferred
Published
Aug 25, 2026, 9:17 AM
Modified
Sep 28, 2026, 11:10 PM