{"cve":{"cve_id":"CVE-2026-54420","is_kev":true,"kev_date_added":"2026-06-15","kev_vendor_project":"LiteSpeed","kev_product":"cPanel Plugin","kev_vulnerability_name":"LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability","kev_short_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.","kev_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.","kev_due_date":"2026-06-18","kev_known_ransomware":false,"kev_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","kev_cwes":["CWE-61"],"epss_score":0.01261,"epss_percentile":0.65817,"epss_as_of":"2026-06-23","description":"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.","published_at":"2026-06-14T03:23:12.863000Z","last_modified_at":null,"cvss_v3_score":8.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-61"],"nvd_references":["https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel","https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-28T23:30:54.391983Z"},"effective_severity":"HIGH","badges":["kev"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"H","value_label":"High"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"litespeed-technologies","vendor_name":"LiteSpeed Technologies","product_slug":"cpanel-plugin","product_name":"cPanel Plugin","version_start":"2.3","version_start_inclusive":true,"version_end":"2.4.8","version_end_inclusive":false,"cpe23_uri":"cve5:litespeed-technologies:cpanel-plugin:2.3:2.4.8"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel","source_type":"MISC","tags":[]},{"url":"https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-14T03:23:12.863000Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2026-06-15T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"cvss_changed","at":"2026-06-28T17:55:37.240342Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:55:37.240342Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:55:37.240342Z","label":"CVSS score revised","source":"cvelistv5"}]}