CVE-2026-77133 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Typo3	Extension "femanager"

No data.

No data.

References

Link	Providers
https://typo3.org/security/advisory/typo3-ext-sa-2026-024

History

Fri, 28 Aug 2026 21:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Typo3 Typo3 extension "femanager"
Vendors & Products		Typo3 Typo3 extension "femanager"

Tue, 25 Aug 2026 15:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 25 Aug 2026 09:15:00 +0000

Type	Values Removed	Values Added
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.
Title		Broken Access Control in extension "femanager" (femanager)
Weaknesses		CWE-862
References		https://typo3.org/security/advisory/typo3-ext-sa-2026-024
Metrics		cvssV4_0 `{'score': 6, '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'}`

MITRE

Status: PUBLISHED

Assigner: TYPO3

Published: 2026-08-25T09:00:41.795Z

Updated: 2026-08-25T14:51:54.568Z

Reserved: 2026-08-20T13:10:12.063Z

Link: CVE-2026-77133

Vulnrichment

Updated: 2026-08-25T14:46:21.506Z

NVD

Status : Deferred

Published: 2026-08-25T09:17:33.697

Modified: 2026-08-26T17:13:53.420

Link: CVE-2026-77133

Redhat

No data.

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