{"id":"CVE-2026-32758","state":"PUBLISHED","title":"File Browser has an Access Rule Bypass via Path Traversal in Copy/Rename Destination Parameter","description":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Versions 2.61.2 and below are vulnerable to Path Traversal through the resourcePatchHandler (http/resource.go). The destination path in resourcePatchHandler is validated against access rules before being cleaned/normalized, while the actual file operation calls path.Clean() afterward—resolving .. sequences into a different effective path. This allows an authenticated user with Create or Rename permissions to bypass administrator-configured deny rules (both prefix-based and regex-based) by injecting .. sequences in the destination parameter of a PATCH request. As a result, the user can write or move files into any deny-rule-protected path within their scope. However, this cannot be used to escape the user's BasePathFs scope or read from restricted paths. This issue has been fixed in version 2.62.0.","publishedAt":"2026-03-19T23:22:19.952Z","updatedAt":"2026-03-20T20:00:43.633Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["filebrowser filebrowser"],"affected":[{"vendor":"filebrowser","product":"filebrowser","versions":[{"version":"< 2.62.0","status":"affected"}]}],"references":["https://github.com/filebrowser/filebrowser/security/advisories/GHSA-9f3r-2vgw-m8xp","https://github.com/filebrowser/filebrowser/commit/4bd7d69c82163b201a987e99c0c50d7ecc6ee5f1","https://github.com/filebrowser/filebrowser/releases/tag/v2.62.0"],"weaknesses":["CWE-863","CWE-22"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/32xxx/CVE-2026-32758.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32758","state":"PUBLISHED","datePublished":"2026-03-19T23:22:19.952Z","dateUpdated":"2026-03-20T20:00:43.633Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-13T18:53:03.532Z"},"containers":{"cna":{"title":"File Browser has an Access Rule Bypass via Path Traversal in Copy/Rename Destination Parameter","descriptions":[{"lang":"en","value":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Versions 2.61.2 and below are vulnerable to Path Traversal through the resourcePatchHandler (http/resource.go). The destination path in resourcePatchHandler is validated against access rules before being cleaned/normalized, while the actual file operation calls path.Clean() afterward—resolving .. sequences into a different effective path. This allows an authenticated user with Create or Rename permissions to bypass administrator-configured deny rules (both prefix-based and regex-based) by injecting .. sequences in the destination parameter of a PATCH request. As a result, the user can write or move files into any deny-rule-protected path within their scope. However, this cannot be used to escape the user's BasePathFs scope or read from restricted paths. This issue has been fixed in version 2.62.0."}],"affected":[{"vendor":"filebrowser","product":"filebrowser","versions":[{"version":"< 2.62.0","status":"affected"}]}],"references":[{"url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-9f3r-2vgw-m8xp","name":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-9f3r-2vgw-m8xp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/filebrowser/filebrowser/commit/4bd7d69c82163b201a987e99c0c50d7ecc6ee5f1","name":"https://github.com/filebrowser/filebrowser/commit/4bd7d69c82163b201a987e99c0c50d7ecc6ee5f1","tags":["x_refsource_MISC"]},{"url":"https://github.com/filebrowser/filebrowser/releases/tag/v2.62.0","name":"https://github.com/filebrowser/filebrowser/releases/tag/v2.62.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-19T23:22:19.952Z"},"source":{"advisory":"GHSA-9f3r-2vgw-m8xp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-20T20:00:32.489408Z","id":"CVE-2026-32758","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-20T20:00:43.633Z"}}]}}}