### [CVE-2017-18875](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18875) ![](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 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can create arbitrary files. ### POC #### Reference - https://mattermost.com/security-updates/ #### Github No PoCs found on GitHub currently.