{"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"}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-54420", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-06-15T19:35:22.294103Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2026-06-15", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420", "tags": ["government-resource"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-15T17:14:45.605Z"}, "timeline": [{"lang": "en", "time": "2026-06-15T00:00:00.000Z", "value": "CVE-2026-54420 added to CISA KEV"}]}], "cna": {"tags": ["x_known-exploited-vulnerability"], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "LiteSpeed Technologies", "product": "cPanel Plugin", "versions": [{"status": "affected", "version": "2.3", "lessThan": "2.4.8", "versionType": "custom"}], "platforms": ["Linux"], "packageName": "WHM and cPanel PlugIn", "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Upgrade to the LiteSpeed WHM PlugIn v5.3.2.0 or higher (which includes the cPanel PlugIn v2.4.8).", "supportingMedia": [{"type": "text/html", "value": "Upgrade to the LiteSpeed WHM PlugIn v5.3.2.0 or higher (which includes the cPanel PlugIn v2.4.8).", "base64": false}]}], "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/"}], "workarounds": [{"lang": "en", "value": "Disable the cPanel PlugIn for LiteSpeed", "supportingMedia": [{"type": "text/html", "value": "Disable the cPanel PlugIn for LiteSpeed", "base64": false}]}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}, "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-61", "description": "CWE-61 UNIX Symbolic Link (Symlink) Following"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-06-14T03:23:12.863Z"}}}, "cveMetadata": {"cveId": "CVE-2026-54420", "state": "PUBLISHED", "dateUpdated": "2026-06-16T03:56:05.377Z", "dateReserved": "2026-06-14T03:23:12.439Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2026-06-14T03:23:12.863Z", "assignerShortName": "mitre"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:litespeedtech:litespeed_cpanel_plugin:*:*:*:*:*:*:*:*", "matchCriteriaId": "6B1876E6-E6BF-4D4F-8BF7-5555F32A9787", "versionEndExcluding": "2.4.8", "vulnerable": true}, {"criteria": "cpe:2.3:a:litespeedtech:litespeed_whm_plugin:*:*:*:*:*:*:*:*", "matchCriteriaId": "63B844E5-0AFC-4E5B-81AA-AC01FA8FA29C", "versionEndExcluding": "5.3.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2026-54420", "lastModified": "2026-06-15T21:17:25.770", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 6.0, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-06-14T04:16:28.630", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/"}, {"source": "cve@mitre.org", "tags": ["Product"], "url": "https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-61"}], "source": "cve@mitre.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["linux"], "status": "affected", "versions": {"scheme": "generic", "value": "[2.3,2.4.8)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "cPanel Plugin", "source": "cna", "vendor": "LiteSpeed Technologies"}, "product": "cpanel_plugin", "vendor": "litespeed_technologies"}], "created": "2026-06-14T05:30:07.342772+00:00", "title": "Symlink Manipulation Allowing Remote Code Execution in LiteSpeed cPanel Plugin", "updated": "2026-06-14T06:15:06.541829+00:00", "vendors": ["litespeed_technologies", "litespeed_technologies$PRODUCT$cpanel_plugin"]}