CVE-2011-3203: Jcow CMS

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

A Code Execution vulnerability exists the attachment parameter to index.php in Jcow CMS 4.x to 4.2 and 5.2 to 5.2.

Affected products

• Jcow Jcow CMS: from 4.0, up to and including 4.2; from 5.0, up to and including 5.2

Published 2020-01-14. Last modified 2026-06-16.