### [CVE-2025-54478](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-54478)
![](https://img.shields.io/static/v1?label=Product&message=Mattermost%20Confluence%20Plugin&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-306%3A%20Missing%20Authentication%20for%20Critical%20Function&color=brightgreen)

### Description

Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to edit channel subscriptions via API call to the edit channel subscription endpoint.

### POC

#### Reference
- https://mattermost.com/security-updates

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds