### [CVE-2023-4220](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4220)
![](https://img.shields.io/static/v1?label=Product&message=Chamilo&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=0%3C%3D%201.11.24%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-434%20Unrestricted%20Upload%20of%20File%20with%20Dangerous%20Type&color=brighgreen)

### Description

Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell.

### POC

#### Reference
- https://starlabs.sg/advisories/23/23-4220

#### Github
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/nr4x4/CVE-2023-4220