CVE-2021-32669: TYPO3

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When settings for _backend layouts_ are not properly encoded, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this vulnerability.

Affected products

• TYPO3 TYPO3: from 8.0.0, up to and including 8.7.40; from 9.0.0, up to and including 9.5.28; from 10.0.0, up to and including 10.4.17; from 11.0.0, up to and including 11.3.0

Published 2021-07-20. Last modified 2026-06-17.