CVE-2026-54420
LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability
CVSS
—
No CVSS
EPSS
1.3%
p66
KEV
YES
Jun 15, 2026
Exploit Today
70
0-100
Published: — · Last modified: —
Product
LiteSpeed / cPanel Plugin
Vulnerability
LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability
Added to KEV
Jun 15, 2026
Remediate by
Jun 18, 2026
Known ransomware use
No
Summary description
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.
Required action
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.
Notes
https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-54420