Search/CVE-2026-54420
● CVE — High

CVE-2026-54420

VendorlitespeedtechProductlitespeed cpanel plugin, litespeed whm pluginDiscoveredJun 14, 2026UpdatedJul 23, 2026

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.

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CVSS v3.1
8.5 HIGH
EPSS
1.44%
probability of exploitation in 30 days
CISA KEV
Listed
confirmed active exploitation
News coverage
3
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Sep 25, 2026 → Oct 26, 2026
▲ 0.63pp
0.81% → 1.44% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredLOW
User InteractionNONE
ScopeCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Connections
6 relationships
Timeline
disclosure → media coverage
Jun 14, 2026
Disclosure — published as a CVE record. · last revised by NVD Jul 23, 2026
Jun 16, 2026
thehackernews.com reports: CISA Flags LiteSpeed cPanel Plugin Flaw Exploited for Root Privilege Escalation
Jun 16, 2026
bleepingcomputer.com reports: CISA warns of another cPanel plugin flaw exploited in attacks
Jun 16, 2026
acn.gov.it reports: Rilevato sfruttamento di vulnerabilità in prodotto LiteSpeed cPanel Plugin
Public PoC (4)
github.com/HORKimhab/CVE-2026-54420github.com/Resellnom/litespeed-cpanel-cve-2026-54420-fixgithub.com/mahfuzreham/litespeed-cpanel-cve-2026-54420-fixgithub.com/fevar54/CVE-2026-54420-LiteSpeed-Symlink-Exploit
Unverified third-party code — review before executing.