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CVE record · CVE-2026-54420

LiteSpeed Technologies cPanel Plugin: LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM PlugIn before…

CVSS 8.5 HighCriticalIn CISA KEVEPSS 0.014 · 73rd percentile

Critical, because:

  • In CISA’s KEV catalogue since 15 Jun 2026: it is known to be exploited.

How we decide what’s critical

Published by the CVE Program (CNA: mitre) at 14 Jun 2026, 03:23 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
LiteSpeed Technologies cPanel Plugin Package name: WHM and cPanel PlugIn
  • affected 2.3 to before 2.4.8 custom
Other versions: unaffected
Identifiers
CVE-2026-54420
CNA
mitre
Weakness (CWE)
CWE-61
Tags
Published
14 Jun 2026
Updated
16 Jun 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.5 High 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CNA (mitre)
  • CISA KEV Listed since 15 Jun 2026: known to be exploited.
  • EPSS 0.014, the 73rd percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 14 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.