CVE-2021-38710: Yclas

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

Static (Persistent) XSS Vulnerability exists in version 4.3.0 of Yclas when using the install/view/form.php script. An attacker can store XSS in the database through the vulnerable SITE_NAME parameter.

Affected products

• Yclas Yclas: version 4.3.0 only

Published 2021-08-18. Last modified 2026-06-17.