{"id":"CVE-2026-65639","state":"PUBLISHED","title":"OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execute arbitrary command","description":"OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execute arbitrary commands as root, due to insufficient validation of feed-supplied rule data.\n\nThe vulnerability affects versions of the software originally distributed by ConfigServer, as well as versions of the WebPros-maintained fork that contain the vulnerable code. WebPros has addressed the vulnerability in version 16.30. Other forks or independently maintained versions of ConfigServer Security & Firewall (CSF) may also be affected and should be evaluated independently.","publishedAt":"2026-09-10T16:24:52.871Z","updatedAt":"2026-09-10T18:19:47.504Z","severity":{"score":9.5,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","source":"hackerone"},"assigner":"hackerone","products":["WebPros ConfigServer Security & Firewall","ConfigServer ConfigServer Security & Firewall"],"affected":[{"vendor":"WebPros","product":"ConfigServer Security & Firewall","defaultStatus":"unaffected","versions":[{"version":"2.15","status":"affected","lessThan":"16.30","versionType":"semver"}]},{"vendor":"ConfigServer","product":"ConfigServer Security & Firewall","defaultStatus":"unaffected","versions":[{"version":"2.15","status":"affected","lessThan":"*","versionType":"semver"}]}],"references":["https://support.cpanel.net/hc/en-us/articles/43387923160343-Security-CVE-2026-65639-CSF-Security-Release"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/65xxx/CVE-2026-65639.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-65639","state":"PUBLISHED","datePublished":"2026-09-10T16:24:52.871Z","dateUpdated":"2026-09-10T18:19:47.504Z","assignerShortName":"hackerone","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateReserved":"2026-07-22T15:00:06.103Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execute arbitrary commands as root, due to insufficient validation of feed-supplied rule data.\n\nThe vulnerability affects versions of the software originally distributed by ConfigServer, as well as versions of the WebPros-maintained fork that contain the vulnerable code. WebPros has addressed the vulnerability in version 16.30. Other forks or independently maintained versions of ConfigServer Security & Firewall (CSF) may also be affected and should be evaluated independently."}],"affected":[{"vendor":"WebPros","product":"ConfigServer Security & Firewall","defaultStatus":"unaffected","versions":[{"version":"2.15","status":"affected","lessThan":"16.30","versionType":"semver"}]},{"vendor":"ConfigServer","product":"ConfigServer Security & Firewall","defaultStatus":"unaffected","versions":[{"version":"2.15","status":"affected","lessThan":"*","versionType":"semver"}]}],"references":[{"url":"https://support.cpanel.net/hc/en-us/articles/43387923160343-Security-CVE-2026-65639-CSF-Security-Release"}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","baseScore":9.5,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","type":"CWE","lang":"en","description":"CWE-78 OS Command Injection"}]}],"providerMetadata":{"shortName":"hackerone","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateUpdated":"2026-09-10T16:24:52.871Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T18:19:30.960257Z","id":"CVE-2026-65639","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-10T18:19:47.504Z"}}]}}}