CVE-2020-37238: Cmsmadesimple CMS Made Simple

Medium severity, CVSS 6.4. EPSS: 0.2% chance of exploitation in the next 30 days.

CMS Made Simple 2.2.15 contains a stored cross-site scripting vulnerability that allows authenticated users with Content Manager access to inject malicious scripts through SVG file uploads. Attackers can upload SVG files containing embedded JavaScript to the file manager, which executes when other authenticated users access the uploaded file, enabling cookie theft and session hijacking.

Affected products

• Cmsmadesimple CMS Made Simple: version 2.2.15 only

Published 2026-05-16. Last modified 2026-09-29.