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CVE Vulnerability Details :
CVE-2026-54420
PUBLISHED
More InfoOfficial Page
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
View Known Exploited Vulnerability (KEV) details
Published At-14 Jun, 2026 | 03:23
Updated At-16 Jun, 2026 | 03:56
Rejected At-
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
LiteSpeed Technologies
Product
cPanel Plugin
Package Name
WHM and cPanel PlugIn
Platforms
  • Linux
Default Status
unaffected
Versions
Affected
  • From 2.3 before 2.4.8 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-61CWE-61 UNIX Symbolic Link (Symlink) Following
Type: CWE
CWE ID: CWE-61
Description: CWE-61 UNIX Symbolic Link (Symlink) Following
Metrics
VersionBase scoreBase severityVector
3.18.5HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Version: 3.1
Base score: 8.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Upgrade to the LiteSpeed WHM PlugIn v5.3.2.0 or higher (which includes the cPanel PlugIn v2.4.8).

Configurations
Workarounds

Disable the cPanel PlugIn for LiteSpeed

Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel
N/A
https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/
N/A
Hyperlink: https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel
Resource: N/A
Hyperlink: https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
kev
dateAdded:
2026-06-15
reference:
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
CVE-2026-54420 added to CISA KEV2026-06-15 00:00:00
Event: CVE-2026-54420 added to CISA KEV
Date: 2026-06-15 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420
government-resource
Hyperlink: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420
Resource:
government-resource
Details not found