### [CVE-2021-20185](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20185)
![](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-400&color=brightgreen)

### Description

It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.

### POC

#### Reference
No PoCs from references.

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