CVE-2026-54420
LiteSpeed cPanel plugin contains a UNIX symbolic link (Symlink) following vulnerability that could allow a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS.
Ver en NVDAnálisis
Los plugins de LiteSpeed para cPanel y WHM presentan una vulnerabilidad de seguimiento de enlaces simbólicos que permite a atacantes con acceso FTP o web shell evadir restricciones en servidores de hosting compartido. Esta falla está siendo explotada activamente en entornos que utilizan CloudLinux y CageFS para comprometer la seguridad del servidor. Es imperativo actualizar a las versiones corregidas para prevenir el acceso no autorizado a archivos fuera de la jaula del usuario.
Roles relevantes
Severidad
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HCWE-61CISA KEV
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
EPSS
Afecta
litespeedtech:litespeed_cpanel_pluginlitespeedtech:litespeed_whm_pluginDescripción técnica
LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM PlugIn before 5.3.2.0) mishandles symlinks provided by a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS, as exploited in the wild in May 2026.