CVE-2017-1000428: Flatcore Flatcore-CMS

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

flatCore-CMS 1.4.6 is vulnerable to reflected XSS in user_management.php due to the use of $_SERVER['PHP_SELF'] to build links and a stored XSS in the admin log panel by specifying a malformed User-Agent string.

Affected products

• Flatcore Flatcore-CMS: version 1.4.6 only

Published 2018-01-10. Last modified 2026-06-17.