{"id":"CVE-2026-54420","state":"PUBLISHED","title":"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","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.","publishedAt":"2026-06-14T03:23:12.863Z","updatedAt":"2026-06-16T03:56:05.377Z","severity":{"score":8.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","source":"mitre"},"assigner":"mitre","products":["LiteSpeed Technologies cPanel Plugin"],"affected":[{"vendor":"LiteSpeed Technologies","product":"cPanel Plugin","packageName":"WHM and cPanel PlugIn","defaultStatus":"unaffected","versions":[{"version":"2.3","status":"affected","lessThan":"2.4.8","versionType":"custom"}],"platforms":["Linux"]}],"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/","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420"],"weaknesses":["CWE-61"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54420.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54420","state":"PUBLISHED","datePublished":"2026-06-14T03:23:12.863Z","dateUpdated":"2026-06-16T03:56:05.377Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-06-14T03:23:12.439Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"LiteSpeed Technologies","product":"cPanel Plugin","packageName":"WHM and cPanel PlugIn","defaultStatus":"unaffected","versions":[{"version":"2.3","status":"affected","lessThan":"2.4.8","versionType":"custom"}],"platforms":["Linux"]}],"references":[{"url":"https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel"},{"url":"https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-61","description":"CWE-61 UNIX Symbolic Link (Symlink) Following","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-06-14T03:23:12.863Z"},"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Upgrade to the LiteSpeed WHM PlugIn v5.3.2.0 or higher (which includes the cPanel PlugIn v2.4.8)."}],"value":"Upgrade to the LiteSpeed WHM PlugIn v5.3.2.0 or higher (which includes the cPanel PlugIn v2.4.8)."}],"tags":["x_known-exploited-vulnerability"],"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Disable the cPanel PlugIn for LiteSpeed"}],"value":"Disable the cPanel PlugIn for LiteSpeed"}],"x_generator":{"engine":"CVE-Request-form 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420","tags":["government-resource"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-15T00:00:00+00:00","options":[{"Exploitation":"active"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-54420"}}},{"other":{"type":"kev","content":{"dateAdded":"2026-06-15","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-16T03:56:05.377Z"},"timeline":[{"time":"2026-06-15T00:00:00.000Z","lang":"en","value":"CVE-2026-54420 added to CISA KEV"}]}]}}}