{"id":"CVE-2026-119147","state":"PUBLISHED","title":"ProFTPD before 1.3.9e and 1.3.10rc5 mod_sftp Copy-File Authorization Bypass","description":"ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorization bypass in the mod_sftp copy-file extension handler that skips Limit WRITE checks for new destination files. Authenticated SFTP users can copy any readable file to a new path in write-denied directories, creating files where uploads are forbidden.","publishedAt":"2026-10-30T11:30:36.342Z","updatedAt":"2026-10-30T11:30:36.342Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["ProFTPD Project ProFTPD"],"affected":[{"vendor":"ProFTPD Project","product":"ProFTPD","packageURL":"pkg:github/proftpd/proftpd","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.3.9e","versionType":"custom"},{"version":"1.3.10rc1","status":"affected","lessThan":"1.3.10rc5","versionType":"custom"}],"repo":"https://github.com/proftpd/proftpd"}],"references":["https://github.com/proftpd/proftpd/commit/b7d3de4565ae448a510feecd17b41923e44bfe16","https://github.com/proftpd/proftpd/blob/v1.3.9d/contrib/mod_sftp/fxp.c#L4748","https://github.com/proftpd/proftpd/releases/tag/v1.3.9e","https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5","https://abraxaslabs.tech/research/proftpd-sftp-copy-file-write","https://github.com/proftpd/proftpd","https://www.vulncheck.com/advisories/proftpd-before-1.3-9e-and-1.3-10rc5-mod-sftp-copy-file-authorization-bypass"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-30T11:38:06.457Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/119xxx/CVE-2026-119147.json","commit":"caad128d12b89565fbbe034f6027c5d022a3f402","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119147","state":"PUBLISHED","datePublished":"2026-10-30T11:30:36.342Z","dateUpdated":"2026-10-30T11:30:36.342Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-29T14:28:41.595Z"},"containers":{"cna":{"title":"ProFTPD before 1.3.9e and 1.3.10rc5 mod_sftp Copy-File Authorization Bypass","descriptions":[{"lang":"en","value":"ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorization bypass in the mod_sftp copy-file extension handler that skips Limit WRITE checks for new destination files. Authenticated SFTP users can copy any readable file to a new path in write-denied directories, creating files where uploads are forbidden."}],"affected":[{"vendor":"ProFTPD Project","product":"ProFTPD","packageURL":"pkg:github/proftpd/proftpd","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.3.9e","versionType":"custom"},{"version":"1.3.10rc1","status":"affected","lessThan":"1.3.10rc5","versionType":"custom"}],"repo":"https://github.com/proftpd/proftpd"}],"references":[{"url":"https://github.com/proftpd/proftpd/commit/b7d3de4565ae448a510feecd17b41923e44bfe16","tags":["patch"]},{"url":"https://github.com/proftpd/proftpd/blob/v1.3.9d/contrib/mod_sftp/fxp.c#L4748","tags":["technical-description"]},{"url":"https://github.com/proftpd/proftpd/releases/tag/v1.3.9e","tags":["release-notes"],"name":"ProFTPD v1.3.9e Release Notes"},{"url":"https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5","tags":["release-notes"],"name":"ProFTPD v1.3.10rc5 Release Notes"},{"url":"https://abraxaslabs.tech/research/proftpd-sftp-copy-file-write","tags":["third-party-advisory"]},{"url":"https://github.com/proftpd/proftpd","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/proftpd-before-1.3-9e-and-1.3-10rc5-mod-sftp-copy-file-authorization-bypass","name":"VulnCheck Advisory: ProFTPD before 1.3.9e and 1.3.10rc5 mod_sftp Copy-File Authorization Bypass","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-30T11:30:36.342Z"},"datePublic":"2026-10-21T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*","versionEndExcluding":"1.3.9e"},{"vulnerable":true,"criteria":"cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*","versionStartIncluding":"1.3.10rc1","versionEndExcluding":"1.3.10rc5"}]}]}],"credits":[{"lang":"en","value":"Abraxas Labs","type":"finder"},{"lang":"en","value":"MiniMax Security","type":"finder"},{"lang":"en","value":"TJ Saunders","type":"remediation developer"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}