CVE-2020-15420: Control-Webpanel Webpanel

Critical severity, CVSS 9.8. EPSS: 8.1% chance of exploitation in the next 30 days.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of CentOS Web Panel cwp-el7-0.9.8.891. Authentication is not required to exploit this vulnerability. The specific flaw exists within loader_ajax.php. When parsing the line parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9259.

Affected products

Published 2020-07-28. Last modified 2026-06-17.