CVE-2011-4736: Parallels Plesk Panel

Medium severity, CVSS 5.0. EPSS: 1.1% chance of exploitation in the next 30 days.

The Control Panel in Parallels Plesk Panel 10.2.0 build 20110407.20 receives cleartext password input over HTTP, which allows remote attackers to obtain sensitive information by sniffing the network, as demonstrated by forms in login_up.php3 and certain other files.

Affected products

• Parallels Parallels Plesk Panel: version 10.2.0_build20110407.20 only

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