CVE-2024-33423: Cmsimple

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Cross-Site Scripting (XSS) vulnerability in the Settings menu of CMSimple v5.15 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Logout parameter under the Language section.

Affected products

• Cmsimple Cmsimple: version 5.15 only

Published 2024-05-01. Last modified 2026-06-17.