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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 4.0
- 7.1 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Source
- disclosure@vulncheck.com
References
- https://github.com/continew-org/continew-admin
- https://github.com/continew-org/continew-admin/blob/v4.1.0/continew-system/src/main/java/top/continew/admin/system/controller/MultipartUploadController.java
- https://github.com/continew-org/continew-admin/issues/221
- https://www.vulncheck.com/advisories/continew-admin-through-4.1.0-missing-authorization-and-file-type-allowlist-on-multipart-upload-endpoints
- https://github.com/continew-org/continew-admin/issues/221
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.