CVE-2021-43742: Cmsimple

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

CMSimple 5.4 is vulnerable to Cross Site Scripting (XSS) via the file upload feature.

Affected products

• Cmsimple Cmsimple: version 5.4 only

Published 2022-04-13. Last modified 2026-06-17.