CVE-2018-6518: Compo Composr CMS

Medium severity, CVSS 4.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Composr CMS 10.0.13 has XSS via the site_name parameter in a page=admin-setupwizard&type=step3 request to /adminzone/index.php.

Affected products

• Compo Composr CMS: version 10.0.13 only

Published 2018-04-26. Last modified 2026-06-17.