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CVE-2026-92919NVD
Vulnerability 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 escape the configured storage directory and overwrite arbitrary files accessible to the server process.
CVSS v4.0 Base Metrics — Score 7.2 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredLow
User InteractionNone
Confidentiality (Vulnerable System)None
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 8.1 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
Affected & Patched Versions
- cjbi admin3 <= 3.0.0
- cjbi admin3 3.0.0
External References
- https://github.com/LinYuanyi1/cve-request-poc/blob/master/admin3/C03_storage_path_traversal_write.py
- https://github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin3/infra/storage/LocalStorage.java
- https://github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin3/infra/storage/StorageServiceImpl.java
- https://github.com/cjbi/admin3
- https://www.vulncheck.com/advisories/admin3-through-3.0.0-arbitrary-file-write-via-path-traversal-in-storage-upload-filename