{"id":"CVE-2026-55668","state":"PUBLISHED","title":"File Browser: ScopedFs follows a dangling symlink on write, letting a scoped user create files outside their scope","description":"File Browser provides a web file managing interface. Prior to 2.63.16, ScopedFs validates the nearest existing ancestor of a dangling symlink as in scope and then follows the symlink during file creation, allowing an authenticated user with Create and Modify permissions to create attacker-controlled files outside the user's scope. This issue is fixed in version 2.63.16.","publishedAt":"2026-07-08T14:55:25.433Z","updatedAt":"2026-07-08T16:11:52.007Z","severity":{"score":6.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["filebrowser filebrowser"],"affected":[{"vendor":"filebrowser","product":"filebrowser","versions":[{"version":"< 2.63.16","status":"affected"}]}],"references":["https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8wc8-hf36-mjh9","https://github.com/filebrowser/filebrowser/commit/64511ce45e3be379e965f7f4fb0929a068d5bb81","https://github.com/filebrowser/filebrowser/releases/tag/v2.63.16"],"weaknesses":["CWE-22","CWE-59"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55668.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55668","state":"PUBLISHED","datePublished":"2026-07-08T14:55:25.433Z","dateUpdated":"2026-07-08T16:11:52.007Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-17T00:05:03.777Z"},"containers":{"cna":{"title":"File Browser: ScopedFs follows a dangling symlink on write, letting a scoped user create files outside their scope","descriptions":[{"lang":"en","value":"File Browser provides a web file managing interface. Prior to 2.63.16, ScopedFs validates the nearest existing ancestor of a dangling symlink as in scope and then follows the symlink during file creation, allowing an authenticated user with Create and Modify permissions to create attacker-controlled files outside the user's scope. This issue is fixed in version 2.63.16."}],"affected":[{"vendor":"filebrowser","product":"filebrowser","versions":[{"version":"< 2.63.16","status":"affected"}]}],"references":[{"url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8wc8-hf36-mjh9","name":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8wc8-hf36-mjh9","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/filebrowser/filebrowser/commit/64511ce45e3be379e965f7f4fb0929a068d5bb81","name":"https://github.com/filebrowser/filebrowser/commit/64511ce45e3be379e965f7f4fb0929a068d5bb81","tags":["x_refsource_MISC"]},{"url":"https://github.com/filebrowser/filebrowser/releases/tag/v2.63.16","name":"https://github.com/filebrowser/filebrowser/releases/tag/v2.63.16","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-59","lang":"en","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-08T14:55:25.433Z"},"source":{"advisory":"GHSA-8wc8-hf36-mjh9","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8wc8-hf36-mjh9","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-08T16:11:24.928801Z","id":"CVE-2026-55668","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":"2026-07-08T16:11:52.007Z"}}]}}}