# CVE-2026-80050: ContiNew Admin arbitrary file upload in multipart endpoints

Source: https://junglewise.ai/threats/cve-2026-80050-continew-admin-arbitrary-file-upload-in-multipart-endpoints  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-25. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-80050 · Severity: medium · CVSS 6.5 · Published 2026-08-25

ContiNew Admin is a multi-tenant backend management framework used to build administrative systems and dashboards. Attackers with valid user accounts can upload files with arbitrary extensions and dangerous content through the multipart upload feature, because permission checks and file-type validation are not enforced. These uploaded files become accessible through the web server, potentially allowing code execution or other attacks.

## Quick answers

**Is CVE-2026-80050 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-80050 being exploited in the wild.

**How severe is CVE-2026-80050?** Medium severity, with a CVSS score of 6.5, published 25 August 2026.

**Which products and versions are affected?** ContiNew Admin v4.1.0 and likely others.

**Is there a fix for CVE-2026-80050?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-80050 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-80050?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an authentication bypass combined with file-upload validation failure in the multipart upload endpoints (MultipartUploadController). The system fails to apply file-type allowlist validation and permission checks when processing chunked file uploads (/init, /upload, /complete endpoints). Authenticated users can initialize chunked uploads, send arbitrary file parts, and complete uploads to store files with dangerous extensions in the web-accessible storage backend. An attacker with valid credentials can achieve arbitrary file write and potentially remote code execution if the storage location is executable.

## Affected products

- ContiNew Admin v4.1.0 and likely others

## Timeline

- 2026-08-25: disclosed

## References

- [https://github.com/continew-org/continew-admin](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/blob/v4.1.0/continew-system/src/main/java/top/continew/admin/system/controller/MultipartUploadController.java)