Arbitrary file upload in Continew-Org Continew-Admin
CVE-2026-80050
ContiNew Admin fails to apply file-upload permission checks or file-type allowlist validation to multipart upload endpoints, allowing authenticated users to store files with arbitrary extensions. Attackers can initialize chunked uploads, send file parts, and complete uploads to leave arbitrary files in the storage backend accessible via web server URLs.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/continew-org/continew-admin (product)
- github.com/continew-org/continew-admin/issues/221 (issue-tracking)
- github.com/continew-org/continew-admin/blob/v4.1.0/continew-system/src/main/jav… (technical-description)
- www.vulncheck.com/advisories/continew-admin-through-4.1.0-missing-authorization… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-80050?
- CVE-2026-80050 is a medium-severity vulnerability in Continew-Org Continew-Admin, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.5/10. Published 2026-08-25.
- How severe is CVE-2026-80050?
- Medium severity. CVSS v3 base score is 6.5 out of 10.