CVEs-PoC/2020/CVE-2020-15655.md

### [CVE-2020-15655](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15655)
![](https://img.shields.io/static/v1?label=Product&message=Firefox%20ESR&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Thunderbird&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2078.1%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2079%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Extension%20APIs%20could%20be%20used%20to%20bypass%20Same-Origin%20Policy&color=brighgreen)

### Description

A redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1645204

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