CVE-2026-85400: TYPO3 CMS

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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 products

• TYPO3 TYPO3 CMS: from 14.2.0, before 14.3.7 (fixed in 14.3.7)

Published 2026-09-08. Last modified 2026-09-08.