cve/2023/CVE-2023-5729.md

### [CVE-2023-5729](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5729)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=unspecified%3C%20119%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Fullscreen%20notification%20dialog%20could%20have%20been%20obscured%20by%20WebAuthn%20prompts&color=brighgreen)

### Description

A malicious web site can enter fullscreen mode while simultaneously triggering a WebAuthn prompt. This could have obscured the fullscreen notification and could have been leveraged in a spoofing attack. This vulnerability affects Firefox < 119.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1823720

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