CVE-2026-92919
CVE-2026-92919
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Weakness classification (CWE)
References
- github.com/LinYuanyi1/cve-request-poc/blob/master/admin3/C03_storage_path_trave… (exploit)
- github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin… (technical-description)
- github.com/cjbi/admin3/blob/3.0.0/admin3-server/src/main/java/tech/wetech/admin… (technical-description)
- github.com/cjbi/admin3 (product)
- www.vulncheck.com/advisories/admin3-through-3.0.0-arbitrary-file-write-via-path… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92919?
- CVE-2026-92919 is a high-severity vulnerability, classified under Path Traversal. CVSS score: 8.1/10. Published 2026-09-17.
- How severe is CVE-2026-92919?
- High severity. CVSS v3 base score is 8.1 out of 10.