CVE-2020-20977: Ukcms

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

A stored cross site scripting (XSS) vulnerability in index.php/legend/6.html of UK CMS v1.1.10 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the Comments section.

Affected products

• Ukcms Ukcms: version 1.1.10 only

Published 2021-08-12. Last modified 2026-06-17.