cve/2023/CVE-2023-4054.md

### [CVE-2023-4054](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4054)
![](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=unspecified%3C%20102.14%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=unspecified%3C%20116%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Lack%20of%20warning%20when%20opening%20appref-ms%20files&color=brighgreen)

### Description

When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 102.14, Firefox ESR < 115.1, Thunderbird < 102.14, and Thunderbird < 115.1.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1840777

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