{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54420","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","state":"PUBLISHED","assignerShortName":"mitre","dateReserved":"2026-06-14T03:23:12.439Z","datePublished":"2026-06-14T03:23:12.863Z","dateUpdated":"2026-06-16T03:56:05.377Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"WHM and cPanel PlugIn","platforms":["Linux"],"product":"cPanel Plugin","vendor":"LiteSpeed Technologies","versions":[{"lessThan":"2.4.8","status":"affected","version":"2.3","versionType":"custom"}]}],"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."}],"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":{"orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre","dateUpdated":"2026-06-14T03:23:12.863Z"},"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/"}],"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":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","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"}]}]}}