CVE-2026-92919 admin3 through 3.0.0 Arbitrary File Write via Path Traversal in Storage Upload Filename
Authenticated attackers can exploit path traversal in admin3 to write arbitrary files outside the storage directory, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92919?
CVE-2026-92919 is a high-severity path traversal vulnerability in cjbi admin3, published on 17 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-22
Which versions are affected by CVE-2026-92919?
How do I fix CVE-2026-92919?
No fix has been published for CVE-2026-92919 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-92919 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-92919 exists.
Sources
Also known as GHSA-fx9h-7xfw-54cm.