cve/2024/CVE-2024-9155.md

### [CVE-2024-9155](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-9155)
![](https://img.shields.io/static/v1?label=Product&message=Mattermost&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=9.10.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=9.5.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=9.9.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-863%3A%20Incorrect%20Authorization&color=brightgreen)

### Description

Mattermost versions 9.10.x <= 9.10.1, 9.9.x <= 9.9.2, 9.5.x <= 9.5.8 fail to limit access to channels files that have not been linked to a post which allows an attacker to view them in channels that they are a member of.

### POC

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

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