CVE-2026-54420

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-54420

2026-06-15 00:00 UTC

Timestamps

2026-06-15

2026-06-15

Scope

KEV entry: LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability | Affected: LiteSpeed / cPanel Plugin | Description: 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. | Required action: 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. | Due date: 2026-06-18 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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

References
  • {'id': 'CVE-2026-54420', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-54420'}

13b0ff57-5401-41c2-9957-07ee8b739cd8

405284c2-e461-4670-8979-7fd2c9755a60

2026-06-15 20:00 UTC

2026-06-15 20:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-61"
  ],
  "date_added": "2026-06-15",
  "due_date": "2026-06-18",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "cPanel Plugin",
  "vendorProject": "LiteSpeed",
  "vulnerabilityName": "LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability"
}
 -
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