Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

GHSA-3G44-C4QC-CXM8

Linked CVE: CVE-2026-54420

LiteSpeed cPanel plugin before 2.4.8 ...

affected before 2.4.8

View live feed Monitor via API Watch GHSA-3G44-C4QC-CXM8
Severity
CVSS 8.5 · High
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
1.4%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

GHSA-3G44-C4QC-CXM8 is a published CVE tracked by Previdian. 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...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV. Also confirmed by third-party sources.

Who is affected?

Affected versions: affected before 2.4.8.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

LiteSpeed cPanel plugin before 2.4.8 ...

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.

LiteSpeed Technologies Affected
cPanel Plugin WHM and cPanel PlugIn
Before 2.4.8
View vendor advisory (opens in new tab)
Published
14 Jun 2026
Exploitation Reported
14 Jun 2026
Attack vector
Remote
Complexity
High
Privileges
Low
User interaction
None

Tags

linux cisa

CVE References

Exploitation evidence

Why Previdian marks this advisory as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CVE

Recorded 14 Jun 2026

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
CVE First 2026-06-14 04:01 UTC
CISA 2026-06-15 00:00 UTC
All CISA Advisories 2026-06-15 20:20 UTC
Daily CyberSecurity 2026-06-16 00:20 UTC
TheHackerNews 2026-06-16 07:20 UTC
BleepingComputer 2026-06-16 11:20 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

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%

Weaknesses

UNIX Symbolic Link (Symlink) Following CWE-61

Recent mention · TheHackerNews

LiteSpeed Enterprise Flaw Could Let One Hosting Account Gain Root Access on a Shared Server

A critical vulnerability in LiteSpeed Web Server Enterprise could let a low-privilege website user gain root access on a shared-hosting server, cPanel warned in an advisory published on September 14. On such servers, many customers' sites run on a single machine, and an...

Read full advisory

All Mentions

Recent mention · TheHackerNews

LiteSpeed Enterprise Flaw Could Let One Hosting Account Gain Root Access on a Shared Server

TheHackerNews · 15 Sep 2026

A critical vulnerability in LiteSpeed Web Server Enterprise could let a low-privilege website user gain root access on a shared-hosting server, cPanel warned in an advisory published on September 14. On such servers, many customers' sites run on a single machine, and an attacker with one of those hosting accounts could exploit the flaw to access or alter other sites and the server itself,

Recent mention · BleepingComputer

CISA warns of another cPanel plugin flaw exploited in attacks

BleepingComputer · 16 Jun 2026

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has given U.S. government agencies three days to secure their servers against an actively exploited vulnerability (CVE-2026-54420) in the LiteSpeed cPanel user-end plugin. [...]

Recent mention · TheHackerNews

CISA Flags LiteSpeed cPanel Plugin Flaw Exploited for Root Privilege Escalation

TheHackerNews · 16 Jun 2026

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a security flaw impacting LiteSpeed cPanel Plugin to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to apply the fixes by June 18, 2026. The vulnerability in question is CVE-2026-54420 (CVSS score: 8.5), which has been described as a case of privilege

Recent mention · Daily CyberSecurity

LiteSpeed cPanel Privilege Escalation Flaw Exploited in the Wild (CVE-2026-54420)

Daily CyberSecurity · 16 Jun 2026

A LiteSpeed cPanel privilege escalation flaw is being exploited in the wild right now. Tracked as CVE-2026-54420, the The post LiteSpeed cPanel Privilege Escalation Flaw Exploited in the Wild (CVE-2026-54420) appeared first on Daily CyberSecurity. Related posts: Critical CVE-2025-11749 Flaw in AI Engine Plugin Exposes WordPress Sites to Full Compromise Critical cPanel Flaw (CVSS 9.3) Allows Directory Traversal LPE for Full Server Takeover Under Attack: Cisco Urges Immediate Action as Hackers Actively Exploit SD-WAN Manager Flaws

Recent mention · All CISA Advisories

CISA Adds Two Known Exploited Vulnerabilities to Catalog

All CISA Advisories · 15 Jun 2026

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-20262 Cisco Catalyst SD-WAN Manager Directory or Path Traversal Vulnerability CVE-2026-54420 LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.  Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements...

Timeline

From disclosure to observed exploitation

  1. 11:20 UTC

    KEV confirmed by BleepingComputer

    Exploitation attested by an external source

  2. 07:20 UTC

    KEV confirmed by TheHackerNews

    Exploitation attested by an external source

  3. 00:20 UTC

    KEV confirmed by Daily CyberSecurity

    Exploitation attested by an external source

  4. 20:20 UTC

    KEV confirmed by All CISA Advisories

    Exploitation attested by an external source

  5. 00:00 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  6. 06:30 UTC

    GitHub Advisory published

    Vulnerability disclosed publicly

  7. 04:01 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/GHSA-3G44-C4QC-CXM8

Free JSON includes basic KEV fields 
{
  "ghsa_id": "GHSA-3G44-C4QC-CXM8",
  "confidence": "Confirmed",
  "cvss_score": 8.5,
  "cvss_estimated": false,
  "epss_score": 0.01439,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}