Vulnerability · Published Sep 17, 2026 · Assigned by VulnCheck
CVE-2026-92919admin3 through 3.0.0 Arbitrary File Write via Path Traversal in Storage Upload Filename
High 8.1
In plain English
A high-severity path traversal in admin3 from cjbi. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.6%top 51.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
References
- admin3 - path traversal write through the storage upload filename (PoC) exploit
- LocalStorage.java at 3.0.0 technical-description
- StorageServiceImpl.java at 3.0.0 technical-description
- Product product
- VulnCheck Advisory: admin3 through 3.0.0 Arbitrary File Write via Path Traversal in Storage Upload Filename third-party-advisory