CVEs-PoC/2021/CVE-2021-29953.md

### [CVE-2021-29953](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29953)
![](https://img.shields.io/static/v1?label=Product&message=Firefox%20for%20Android&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2088.0.1%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2088.1.3%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Universal%20Cross-Site%20Scripting&color=brighgreen)

### Description

A malicious webpage could have forced a Firefox for Android user into executing attacker-controlled JavaScript in the context of another domain, resulting in a Universal Cross-Site Scripting vulnerability. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected. Further details are being temporarily withheld to allow users an opportunity to update.*. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1701684

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