CVE-2022-50912: Impresscms

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

ImpressCMS 1.4.4 contains a file upload vulnerability with weak extension sanitization that allows attackers to upload potentially malicious files. Attackers can bypass file upload restrictions by using alternative file extensions .php2.php6.php7.phps.pht to execute arbitrary PHP code on the server.

Affected products

• Impresscms Impresscms: version 1.4.4 only

Published 2026-01-13. Last modified 2026-06-17.