CVE-2011-4726: Parallels Plesk Panel

Medium severity, CVSS 4.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Multiple cross-site scripting (XSS) vulnerabilities in the Server Administration Panel in Parallels Plesk Panel 10.2.0_build1011110331.18 allow remote attackers to inject arbitrary web script or HTML via crafted input to a PHP script, as demonstrated by admin/health/ and certain other files.

Affected products

• Parallels Parallels Plesk Panel: version 10.2.0_build1011110331.18 only

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