cve/2021/CVE-2021-40889.md

### [CVE-2021-40889](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40889)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

CMSUno version 1.7.2 is affected by a PHP code execution vulnerability. sauvePass action in {webroot}/uno/central.php file calls to file_put_contents() function to write username in password.php file when a user successfully changed their password. The attacker can inject malicious PHP code into password.php and then use the login function to execute code.

### POC

#### Reference
- https://github.com/boiteasite/cmsuno/issues/19

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