
Carga de archivos sin restricciones en la funcionalidad de carga de archivos grandes en `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` en Chamilo LMS en versiones <= 1.11.24 permite a atacantes no autenticados realizar ataques de Cross Site Scripting almacenados y obtener código remoto ejecución mediante la carga de web shell.
Unrestricted file upload in the large file upload functionality at /main/inc/lib/javascript/bigupload/inc/bigUpload.php in Chamilo LMS versions <= 1.11.24 allows unauthenticated attackers to perform stored Cross-Site Scripting attacks and achieve remote code execution by uploading a web shell.
bash CVE.2023-4220.sh -f (webshell) -u (URL) -l (puerto)

The uploaded file should be visible at the following path: /main/inc/lib/javascript/bigupload/files.

In this case, we have created a web shell using the Hack-Tools tool.
