{"schema":"threatline.record/2","record":{"id":"CVE-2026-57491","aliases":["GHSA-c4g2-8fg6-5xrr"],"summary":"FileRise: ZIP extraction writes blocked file extensions to disk, bypassing the upload blocklist","details":"FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, FileRise archive extraction does not apply UploadNamePolicy::isAllowedForWrite() before ZipArchive::extractTo() writes entries into the destination directory. An authenticated user with upload and extract permissions can place a blocked extension such as a PHP-family file inside a ZIP and cause it to be written to disk even when normal uploads reject that filename. Post-extraction metadata pruning does not remove the blocked file, so deployments that execute uploaded content may permit code execution. This issue is fixed in version 3.16.0.","categories":["Unclassified"],"product":"FileRise","vendor":"error311","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-57491","source_modified_at":"2026-10-15T18:52:12.800Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"FileRise","vendor":"error311","versions":[{"version":"< 3.16.0","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00287,"percentile":0.202,"score_date":"2026-10-23"},"published_at":"2026-10-14T20:17:04.140Z","modified_at":"2026-10-15T18:52:12.800Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-57491","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T18:52:12.800Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-57491","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/error311/FileRise/security/advisories/GHSA-c4g2-8fg6-5xrr","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/error311/FileRise/commit/f7114ca2a4e624238dda0d097a07ad6b05c11bb6","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/error311/FileRise/releases/tag/v3.16.0","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T18:51:39.878344Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T18:52:12.800Z","content_hash":"d7b8d8970a54953c9926a5f344831fbccd29119ed586b84603a8396e119f592d"}}