CVE-2019-11818: Alkacon Opencms

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Alkacon OpenCMS v10.5.4 and before is affected by stored cross site scripting (XSS) in the module New User (/opencms/system/workplace/admin/accounts/user_new.jsp). This allows an attacker to insert arbitrary JavaScript as user input (First Name or Last Name), which will be executed whenever the affected snippet is loaded.

Affected products

• Alkacon Opencms: up to and including 10.5.4

Published 2019-05-08. Last modified 2026-06-17.