CVE-2026-77132: TYPO3 CMS - Information Disclosure via Backend Localization Wizard
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 Software
Event History
Frequently Asked Questions
Which deployments are exposed?
TYPO3 CMS installations running versions 10.0.0 through 10.4.59, 11.0.0 through 11.5.53, 12.0.0 through 12.4.48, 13.0.0 through 13.4.34, or 14.0.0 through 14.3.6 are affected.
What access does an attacker need?
An attacker needs an authenticated low-privileged TYPO3 backend user account. The issue involves AJAX routes used by the backend localization wizard.
What information could an attacker access?
A low-privileged backend user could access information about records and content elements outside their permitted range due to missing authorization checks on the affected routes.