### [CVE-2019-11720](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11720)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2068%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Character%20encoding%20XSS%20vulnerability&color=brighgreen)

### Description

Some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering. This vulnerability affects Firefox < 68.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1556230
- https://bugzilla.mozilla.org/show_bug.cgi?id=1556230

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