CVE-2026-80050

MEDIUM 6.5

ContiNew Admin through 4.1.0 Missing Authorization and File-Type Allowlist on Multipart Upload Endpoints

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-434
Vendor	continew-org
Product	continew-admin
Published	Aug 25, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Affected Versions

continew-org / continew-admin

0 ≤ 4.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/continew-org/continew-admin github.com: https://github.com/continew-org/continew-admin/issues/221 github.com: https://github.com/continew-org/continew-admin/blob/v4.1.0/continew-system/src/main/java/top/continew/admin/system/controller/MultipartUploadController.java vulncheck.com: https://www.vulncheck.com/advisories/continew-admin-through-4.1.0-missing-authorization-and-file-type-allowlist-on-multipart-upload-endpoints

Credits

George Chen