🛡️ CVE-2026-54420 — litespeed-cpanel-plugin

🟠 CVSS 8.5 — High ✅ No Known Exploit CWE-61 NVD
8.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2026-54420 is recorded against 3 packages.

  • litespeed-cpanel-plugin (fixed in 2.4.8)
  • litespeed-whm-plugin (fixed in 5.3.2.0)
  • unknown

Timeline and source

Published on 14 June 2026 and last revised on 23 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

blog.litespeedtech.com
www.litespeedtech.com
www.cisa.gov

Details

Severity HIGH
CVSS Score 8.5
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE CWE-61
Public Exploit ✅ No
Source NVD
Published 2026-06-14
Updated 2026-08-11
Modified 2026-07-23
Fix URL N/A

Affected Packages

Software From version Fixed in
litespeed-cpanel-plugin — 2.4.8
litespeed-whm-plugin — 5.3.2.0
unknown — —

Similar Threats

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