CVE-2023-47126: TYPO3

Medium severity, CVSS 5.3. EPSS: 0.7% chance of exploitation in the next 30 days.

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions the login screen of the standalone install tool discloses the full path of the transient data directory (e.g. /var/www/html/var/transient/). This applies to composer-based scenarios only - “classic” non-composer installations are not affected. This issue has been addressed in version 12.4.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• TYPO3 TYPO3: from 12.2.0, before 12.4.8 (fixed in 12.4.8)

Published 2023-11-14. Last modified 2026-06-17.