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Exploits
ID:12775 - Exploit for Improper access control in LiteSpeed User-End cPanel Plugin and LiteSpeed WHM Plugin - CVE-2026-54420
ID:12775 - Exploit for Improper access control in LiteSpeed User-End cPanel Plugin and LiteSpeed WHM Plugin - CVE-2026-54420
Published: June 23, 2026
Vulnerability identifier: #VU134649
Vulnerability risk: Critical
CVE-ID: CVE-2026-54420
CWE-ID: CWE-284
Exploitation vector: Remote access
Vulnerable software:
LiteSpeed User-End cPanel Plugin
LiteSpeed WHM Plugin
LiteSpeed User-End cPanel Plugin
LiteSpeed WHM Plugin
Link to public exploit:
Vulnerability description
The vulnerability allows a remote user to escalate privileges to root.
The vulnerability exists due to improper access control in the LiteSpeed cPanel user-end plugin when handling cPanel JSON API requests. A remote user can invoke crafted requests to vulnerable plugin functionality to escalate privileges to root.
Exploitation requires FTP access or web shell access on shared hosting servers running CloudLinux/CageFS.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install security update from vendor's website.