CVEs-PoC/2021/CVE-2021-28998.md

### [CVE-2021-28998](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28998)
![](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

File upload vulnerability in CMS Made Simple through 2.2.15 allows remote authenticated attackers to gain a webshell via a crafted phar file.

### POC

#### Reference
- https://github.com/beerpwn/CVE/blob/master/cms_made_simple_2021/file_upload_RCE/File_upload_to_RCE.md
- https://seclists.org/fulldisclosure/2021/Mar/50

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