CVE-2026-92919
admin3 through 3.0.0 Arbitrary File Write via Path Traversal in Storage Upload Filename
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 |
| Vendor | cjbi |
| Product | admin3 |
| Published | Sep 17, 2026 |
| Last Updated | Sep 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Affected Versions
cjbi / admin3
0 ≤ 3.0.0
References
github.com: https://github.com/LinYuanyi1/cve-request-poc/blob/master/admin3/C03_storage_path_traversal_write.py github.com: https://github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin3/infra/storage/LocalStorage.java github.com: https://github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin3/infra/storage/StorageServiceImpl.java github.com: https://github.com/cjbi/admin3 vulncheck.com: https://www.vulncheck.com/advisories/admin3-through-3.0.0-arbitrary-file-write-via-path-traversal-in-storage-upload-filename
Credits
🔍 Mingsheng Lin