Live › vulnerability › CVE-2026-54420
Go to dashboardThe LiteSpeed cPanel plugin follows UNIX symbolic links in a way that lets a user with FTP or web shell access reach files outside their allowed area on a shared hosting server running CloudLinux/CageFS. CISA lists it as actively exploited, so an attacker with a hosting account can read or change files they should not reach.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
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.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| LiteSpeed cPanel Plugin | vendor | – | – |
| litespeedtech litespeed cpanel plugin | vendor | < 2.4.8 | 2.4.8 |
| litespeedtech litespeed whm plugin | vendor | < 5.3.2.0 | 5.3.2.0 |
Check the installed LiteSpeed cPanel plugin version against the vendor advisory: unknown CISA KEV entry lists the affected product; confirm the plugin is installed on your cPanel hosts
Apply the vendor mitigation or update named in the vendor advisory; unknown in the sources If no mitigation is available, discontinue use of the plugin per CISA BOD 26-04 guidance
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
CISA 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.
This page as .md · .json · in your agent: get_signal("CVE-2026-54420")
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