CVE-2021-42656: Sscms Siteserver CMS

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

SiteServer CMS V6.15.51 is affected by a Cross Site Scripting (XSS) vulnerability.

Affected products

• Sscms Siteserver CMS: version 6.15.51 only

Published 2022-05-24. Last modified 2026-06-17.