CVE-2009-3634: TYPO3

Medium severity, CVSS 4.3. EPSS: 2% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the Frontend Login Box (aka felogin) subcomponent in TYPO3 4.2.0 through 4.2.6 allows remote attackers to inject arbitrary web script or HTML via unspecified parameters.

Affected products

• TYPO3 TYPO3: version 4.2.0 only; version 4.2.1 only; version 4.2.2 only; version 4.2.4 only; version 4.2.5 only; version 4.2.6 only

Published 2009-11-02. Last modified 2026-06-16.