{"id":"CVE-2026-92919","summary":"admin3 through 3.0.0 Arbitrary File Write via Path Traversal in Storage Upload Filename","details":"admin3 through 3.0.0 fails to sanitize client-supplied filenames in the upload handler, allowing authenticated users to write files outside the storage root on Windows deployments. Attackers can use dot-dot path segments in filenames to escape the configured storage directory and overwrite arbitrary files accessible to the server process.","modified":"2026-09-24T03:30:33.988800514Z","published":"2026-09-17T12:33:23.853Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92919.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-22"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92919.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92919"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/admin3-through-3.0.0-arbitrary-file-write-via-path-traversal-in-storage-upload-filename"},{"type":"PACKAGE","url":"https://github.com/cjbi/admin3"},{"type":"ARTICLE","url":"https://github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin3/infra/storage/LocalStorage.java"},{"type":"ARTICLE","url":"https://github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin3/infra/storage/StorageServiceImpl.java"},{"type":"EVIDENCE","url":"https://github.com/LinYuanyi1/cve-request-poc/blob/master/admin3/C03_storage_path_traversal_write.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cjbi/admin3","events":[{"introduced":"c24d25fe571347cd32662b4e135f826e2ea4b140"},{"fixed":"c24d25fe571347cd32662b4e135f826e2ea4b140"}],"database_specific":{"source":["AFFECTED_FIELD","DESCRIPTION"],"extracted_events":[{"introduced":"0"},{"last_affected":"3.0.0"},{"introduced":"admin3"},{"fixed":"3.0.0"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92919.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"}]}