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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-25 19:16

Updated : 2026-08-26 14:17

NVD link : CVE-2026-80050

Mitre link : CVE-2026-80050

CVE.ORG link : CVE-2026-80050

JSON object : View

Products Affected

No product.

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

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