CVE-2026-54420

8.5 highKEVEPSS 1.4%

High (8.5) in LiteSpeed cPanel Plugin. In CISA KEV since 2026-06-15. EPSS 1.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.5 high

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
CISA KEV: listed 2026-06-15, due 2026-06-18
CWE: CWE-61
Published: 2026-06-14
Modified: 2026-07-23
Record from: the NVD, synced 2026-10-19

Affected

litespeedtech:litespeed_cpanel_plugin
litespeedtech:litespeed_whm_plugin

References

https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/
https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420

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