CVE-2011-4777: Parallels Plesk Panel

Medium severity, CVSS 4.3. EPSS: 0.9% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the Site Editor (aka SiteBuilder) feature in Parallels Plesk Panel 10.4.4_build20111103.18 allows remote attackers to inject arbitrary web script or HTML via the login parameter to preferences.html.

Affected products

• Parallels Parallels Plesk Panel: version 10.4.4_build20111103.18 only

Published 2011-12-16. Last modified 2026-06-16.