### [CVE-2021-37866](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37866)
![](https://img.shields.io/static/v1?label=Product&message=Mattermost%20Boards&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%3D%200.10.0%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-613%20Insufficient%20Session%20Expiration&color=brighgreen)

### Description

Mattermost Boards plugin v0.10.0 and earlier fails to invalidate a session on the server-side when a user logged out of Boards, which allows an attacker to reuse old session token for authorization.

### POC

#### Reference
- https://mattermost.com/security-updates/
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-37866

#### Github
No PoCs found on GitHub currently.