CVE-2026-54420: CWE-61 UNIX Symbolic Link (Symlink) Following in LiteSpeed Technologies cPanel Plugin
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.
AI Analysis
Technical Summary
The LiteSpeed cPanel Plugin versions prior to 2.4.8 mishandle UNIX symbolic links created by users with FTP or web shell access on shared hosting environments using CloudLinux/CageFS. This symlink following vulnerability (CWE-61) can lead to a critical security impact, as indicated by the CVSS 3.1 score of 8.5, with high confidentiality, integrity, and availability impacts. The vulnerability was actively exploited in May 2026. No official patch or remediation level has been published yet, and no patch links are provided.
Potential Impact
Successful exploitation allows an attacker with limited FTP or web shell access to leverage symlink mishandling to potentially escalate privileges or access unauthorized files on the shared hosting server. The CVSS score of 8.5 reflects high impact on confidentiality, integrity, and availability, indicating that the vulnerability could lead to significant compromise of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch links are provided, users should monitor LiteSpeed Technologies' advisories for updates. Until a fix is available, restricting FTP and web shell access and limiting symlink creation permissions may reduce risk, but no vendor-endorsed mitigation is documented.
CVE-2026-54420: CWE-61 UNIX Symbolic Link (Symlink) Following in LiteSpeed Technologies cPanel Plugin
Description
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.
CVSS v3.1
Score 8.5high
Affected software
pkg:github/litespeedtech/cpanel-pluginRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The LiteSpeed cPanel Plugin versions prior to 2.4.8 mishandle UNIX symbolic links created by users with FTP or web shell access on shared hosting environments using CloudLinux/CageFS. This symlink following vulnerability (CWE-61) can lead to a critical security impact, as indicated by the CVSS 3.1 score of 8.5, with high confidentiality, integrity, and availability impacts. The vulnerability was actively exploited in May 2026. No official patch or remediation level has been published yet, and no patch links are provided.
Potential Impact
Successful exploitation allows an attacker with limited FTP or web shell access to leverage symlink mishandling to potentially escalate privileges or access unauthorized files on the shared hosting server. The CVSS score of 8.5 reflects high impact on confidentiality, integrity, and availability, indicating that the vulnerability could lead to significant compromise of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch links are provided, users should monitor LiteSpeed Technologies' advisories for updates. Until a fix is available, restricting FTP and web shell access and limiting symlink creation permissions may reduce risk, but no vendor-endorsed mitigation is documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-14T03:23:12.439Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2e699de617e2d8344cdac9
Added to database: 06/14/2026, 08:43:09 UTC
Last enriched: 06/21/2026, 13:20:08 UTC
Last updated: 07/31/2026, 19:24:49 UTC
Views: 276
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