CVE-2026-80050
Received Received - Intake

ContiNew Admin Arbitrary File Upload Vulnerability

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: VulnCheck

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.

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Meta Information

Published
2026-08-25
Last Modified
2026-08-25
Generated
2026-08-25
AI Q&A
2026-08-25
EPSS Evaluated
N/A
NVD
CVE-2026-80050
EUVD
EUVD-2026-65702

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
continew admin to 4.1.0 (inc)
continew admin 4.2.0-snapshot

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

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Executive Summary

ContiNew Admin lacks proper file-upload permission checks and file-type validation on multipart upload endpoints. Authenticated users can upload files with any extension by initiating chunked uploads, sending parts, and completing the process. This allows arbitrary files to be stored in the backend and accessed via web server URLs.

Detection Guidance

Check web server logs for unusual file uploads with arbitrary extensions. Inspect storage directories for unexpected files. Monitor network traffic for chunked upload requests to multipart endpoints.

Impact Analysis

An attacker could upload malicious files like scripts or executables to the server. These files could then be executed or accessed remotely, leading to potential data breaches, system compromise, or unauthorized access to sensitive information.

Compliance Impact

This vulnerability could lead to unauthorized file storage and access, violating data integrity and confidentiality requirements in GDPR and HIPAA. It may result in non-compliance due to potential exposure of personal or protected health information.

Mitigation Strategies

Apply strict file-type allowlists for uploads. Implement proper permission checks on multipart upload endpoints. Restrict authenticated user access to upload functions. Regularly audit stored files and server logs.

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