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Vulnerabilities CVE-2026-54420

CVE-2026-54420

Medium
Open
KEV
TLP:CLEAR

LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability

NVD CVE.org
Backdoor / C2

AI Analysis

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Description

LiteSpeed — cPanel Plugin — 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.

Details

EPSS Score
1.44%

70.7th percentile

Confidence
100%
CISA KEV
Date Added
Jun 15, 2026
Patch Due
Jun 18, 2026
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.
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