TYPO3 CMS 14.2-14.3: Admin Priv escalation via config cmds
CVE-2026-85400 Published on September 8, 2026
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.
Vulnerability Analysis
CVE-2026-85400 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Types
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-85400 has been classified to as an AuthZ vulnerability or weakness.
Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
Products Associated with CVE-2026-85400
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Affected Versions
TYPO3 CMS:- Version 14.2.0 and below 14.3.7 is affected.