{"id":"CVE-2026-92919","title":"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","summary":"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 …","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cwe":["CWE-22"],"vendor":"cjbi","product":"admin3","affected":["admin3 <= 3.0.0"],"published":"2026-09-17","updated":"2026-09-22","sourceUpdated":"2026-09-22T20:53:07.383","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92919","references":[{"url":"https://github.com/LinYuanyi1/cve-request-poc/blob/master/admin3/C03_storage_path_traversal_write.py","label":"disclosure@vulncheck.com"},{"url":"https://github.com/cjbi/admin3","label":"disclosure@vulncheck.com"},{"url":"https://github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin3/infra/storage/LocalStorage.java","label":"disclosure@vulncheck.com"},{"url":"https://github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin3/infra/storage/StorageServiceImpl.java","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/admin3-through-3.0.0-arbitrary-file-write-via-path-traversal-in-storage-upload-filename","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00383,"epssPercentile":0.32209,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-17T18:41:55.304263Z"},"ingestedAt":"2026-09-17T13:18:16.980Z","slug":"CVE-2026-92919","body":"## Overview\n\nadmin3 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":206577,"id":"CVE-2026-92919","ts":1789676937213,"field":"exploit_available","old":"false","new":"true"}]}