CVE-2023-31544: Alkacon Opencms

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

A stored cross-site scripting (XSS) vulnerability in alkacon-OpenCMS v11.0.0.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Title field under the Upload Image module.

Affected products

• Alkacon Opencms: version 11.0 only

Published 2023-05-16. Last modified 2026-06-17.