CTFd vs Vulhub
GitHub Stats
About CTFd
CTFd is the most widely deployed open-source platform for hosting Capture The Flag cybersecurity competitions in jeopardy-style, king-of-the-hill, and custom formats. Built with Flask, it provides challenge management, team registration, scoring, hint systems, and a real-time scoreboard with full customization through themes and plugins. CTF organizers, universities, corporate security training programs, and conference organizers use CTFd to create and manage competitive hacking events that teach and test security skills across domains including web exploitation, cryptography, forensics, and reverse engineering. The platform supports dynamic scoring, challenge dependencies, flag submission rate limiting, and integrates with containerized challenge deployment, making it the go-to solution for events ranging from small internal training exercises to large international competitions.
About Vulhub
Vulhub is a collection of pre-built vulnerable environments based on Docker Compose that allows security researchers and students to reproduce and study real-world CVEs and common vulnerability classes without complex setup. Each environment includes a Docker Compose file, exploit documentation, and step-by-step instructions for reproducing the vulnerability, covering hundreds of CVEs across web frameworks, databases, middleware, and operating system components. Penetration testers, security trainers, and CTF organizers use Vulhub to quickly spin up realistic vulnerable targets for practice, training, and tool development without risking production systems. The project's Docker-based approach ensures consistent, reproducible environments that can be deployed and torn down in seconds, making it an invaluable resource for hands-on security education and exploit development.
Platform Support
Tags
CTFd only
Vulhub only