CVE-2026-85400: TYPO3 CMS - Missing Authorization in lowlevel commands
Backend administrators without system maintainer privileges were able to schedule any of the configuration:read, configuration:set, and configuration:show commands. This allowed them to modify arbitrary system configuration, which is normally limited to system maintainers. As a consequence, this allowed them, for example, to gain system maintainer privileges or cause a denial of service. Exploiting this vulnerability requires an administrator-level backend user account. This issue affects TYPO3 CMS versions 14.2.0-14.3.6.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
Exploitation requires an administrator-level TYPO3 backend user account. Backend administrators who do not have system maintainer privileges are the relevant threat population.
What can a successful attacker do?
An affected backend administrator can schedule the configuration:read, configuration:set, and configuration:show commands and modify arbitrary system configuration. This can be used to obtain system maintainer privileges or cause a denial of service.
Which versions are affected?
TYPO3 CMS versions 14.2.0 through 14.3.6 are affected.