CVE-2026-77132

TYPO3 CMS - Information Disclosure via Backend Localization Wizard

State: Published
Severity: 5.3 Medium
Published: Sep 8, 2026
Updated: Sep 8, 2026
Reserved: Aug 20, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	TYPO3

Weaknesses

CWE-862 Missing Authorization
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
TYPO3 CMSTYPO3	10.0.0 to before 10.4.60Affected 11.0.0 to before 11.5.54Affected 12.0.0 to before 12.4.49Affected 13.0.0 to before 13.4.35Affected 14.0.0 to before 14.3.7Affected

References

https://news.typo3.com/security/advisory/typo3-core-sa-2026-022vendor-advisory
Git commit of main branchpatch
Git commit of 14.3 branchpatch
Git commit of 13.4 branchpatch

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.