### [CVE-2019-20858](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20858)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered in Mattermost Server before 5.15.0. It allows attackers to cause a denial of service (CPU consumption) via crafted characters in a SQL LIKE clause to an APIv4 endpoint.

### POC

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

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