{ "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" } ] } ] } }