CVE-2009-4804: Mario Matzulla Calendar Base

Medium severity, CVSS 4.3. EPSS: 1% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the Calendar Base (cal) extension before 1.1.1 for TYPO3, when Internet Explorer 6 is used, allows remote attackers to inject arbitrary web script or HTML via "search parameters."

Affected products

• Mario Matzulla Calendar Base: up to and including 1.1.0; version 0.9.0 only; version 0.10.0 only; version 0.11.0 only; version 0.12.0 only; version 0.12.1 only; …

Published 2010-04-23. Last modified 2026-06-16.