All vulnerabilities
CVE-2026-54420

LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability

LiteSpeed cPanel PluginApplications & CMS
CVSS
8.5High
ExploitationExploited in the wildAdded to KEV 15 Jun 2026CISA KEV
Exploit odds (EPSS)0.81%Chance of exploitation activity in the next 30 days, higher than 56% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in2.4.8Fixed versionCVE List
Federal deadline18 Jun 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply 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. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 14 Jun 2026, 03:23 UTCPublishedCVE List
  2. 15 Jun 2026Added to CISA KEVCISA KEV

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.

Text from CVE List

Affected versions 1

  • cPanel Pluginaffected: 2.3 before 2.4.8CVE List

References 4