CVE-2026-77132
Published:September 08, 2026
Updated:September 22, 2026
It has been discovered that several AJAX routes used for the backend localization wizard failed to perform authorization checks. This allowed authenticated, low-privileged backend users to access information about records and content elements that fall outside of their permitted range. Exploiting this vulnerability requires a low-privileged backend user account. This issue affects TYPO3 CMS versions 10.0.0-10.4.59, 11.0.0-11.5.53, 12.0.0-12.4.48, 13.0.0-13.4.34 and 14.0.0-14.3.6.
Affected Packages
https://github.com/TYPO3/typo3.git (GITHUB):
Affected version(s) >=v13.0.0 <v13.4.35Fix Suggestion:
Update to version v13.4.35typo3/cms-backend (PHP):
Affected version(s) >=v10.0.0 <v10.4.60Fix Suggestion:
Update to version v10.4.60typo3/cms-backend (PHP):
Affected version(s) >=v14.0.0 <v14.3.7Fix Suggestion:
Update to version v14.3.7typo3/cms-backend (PHP):
Affected version(s) >=v12.0.0 <v12.4.49Fix Suggestion:
Update to version v12.4.49typo3/cms-backend (PHP):
Affected version(s) >=v13.0.0 <v13.4.35Fix Suggestion:
Update to version v13.4.35typo3/cms-backend (PHP):
Affected version(s) >=v11.0.0 <v11.5.54Fix Suggestion:
Update to version v11.5.54Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.41