CVEs-PoC/2021/CVE-2021-23983.md

### [CVE-2021-23983](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23983)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=unspecified%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Transitions%20for%20invalid%20%3A%3Amarker%20properties%20resulted%20in%20memory%20corruption&color=brightgreen)

### Description

By causing a transition on a parent node by removing a CSS rule, an invalid property for a marker could have been applied, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 87.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/n0-traces/cve_monitor