Trending
CVE-2026-54420

CVE detail

CVE-2026-54420

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.

CVSS 8.5 · HighBuzz score 62.9KEV listed

Buzz score

Why this CVE is surfacing

Buzz score total 62.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 17.9 · diversity 20.0 · KEV 25.0 · OTX 0.0 · PoC 0.0

Mention score

17.9

5 evidence mentions in the snapshot

Diversity score

20.0

5 sources across 4 categories

KEV score

25.0

Known exploited vulnerability present

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

5 source links · newest first

Joomla, LiteSpeed Vulnerabilities Exploited in AttacksSecurityWeek
The flaws allow attackers to execute arbitrary PHP code and gain root privileges on shared hosting servers.
newswww.securityweek.comJun 17, 2026, 7:28 AM
U.S. CISA adds Cisco Catalyst and LiteSpeed cPanel plugin flaws to its Known Exploited Vulnerabilities catalogSecurity Affairs
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Cisco Catalyst and LiteSpeed cPanel plugin flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Cisco Catalyst and LiteSpeed cPanel plugin flaws to its Known Exploited Vulnerabilities (KEV) catalog. The two flaws added to the catalog are: CVE-2026-20262 is an arbitrary […]
newssecurityaffairs.comJun 16, 2026, 8:53 AM
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420www.cisa.gov
No excerpt available.
Mitigationwww.cisa.govJun 14, 2026, 4:16 AM
https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanelwww.litespeedtech.com
No excerpt available.
Release Noteswww.litespeedtech.comJun 14, 2026, 4:16 AM
https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/blog.litespeedtech.com
No excerpt available.
Vendor Advisoryblog.litespeedtech.comJun 14, 2026, 4:16 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

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CVE-2026-65010
Datasets through 5.00, fixed in commit ad2d853, contains a symlink-following vulnerability in Extractor.extract() that allows local attackers to write arbitrary files by pre-plant…
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4 mentions
CVE-2026-12080
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4 mentions

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-54420.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:a:litespeedtech:litespeed_cpanel_pluginSearch this product on Shodan
cpe:2.3:a:litespeedtech:litespeed_whm_pluginSearch this product on Shodan

Exact CVE query

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vuln:CVE-2026-54420Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Analyzed

Published

Jun 14, 2026

Modified

Jul 23, 2026

Official record

Authoritative NVD record

CVSS vector

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

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): High. Successful exploitation depends on conditions outside the attacker's control.
Privileges Required (PR): Low. The attacker needs basic user-level privileges.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Changed. Impacts can cross into a different security authority.
Confidentiality Impact (C): High. There is a total or serious impact to this security property.
Integrity Impact (I): High. There is a total or serious impact to this security property.
Availability Impact (A): High. There is a total or serious impact to this security property.

Signals

Exploitation indicators

1 stored signals · KEV present · 0 OTX pulses

KEVKEV
- cwes: CWE-61
- dueDate: 2026-06-18
- knownRansomwareCampaignUse: Unknown
- notes: https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-54420
- product: cPanel Plugin
- requiredAction: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- shortDescription: LiteSpeed cPanel plugin contains a UNIX symbolic link (Symlink) following vulnerability that could allow a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS.
- vendorProject: LiteSpeed
- vulnerabilityName: LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability
Observed Jun 15, 2026, 12:00 AM