CVEs-PoC/2021/CVE-2021-20186.md

### [CVE-2021-20186](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20186)
![](https://img.shields.io/static/v1?label=Product&message=moodle&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=moodle%203.10.1%2C%20moodle%203.9.4%2C%20moodle%203.8.7%2C%20moodle%203.5.16%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79&color=brightgreen)

### Description

It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that if the TeX notation filter was enabled, additional sanitizing of TeX content was required to prevent the risk of stored XSS.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/jev770/badmoodle-scan