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OWASP Damn Vulnerable Web Sockets (DVWS) is a free cyber range training tool. Mellivora is a free cyber range training tool. Compare features, ratings, integrations, and community reviews side by side to find the best cyber range training fit for your security stack.
Based on our analysis of available product data, here is our conclusion:
OWASP Damn Vulnerable Web Sockets (DVWS)
Security teams building or testing real-time applications should use OWASP Damn Vulnerable Web Sockets to close the WebSocket blindspot in their training programs; most developers never encounter these vulnerabilities in labs because frameworks like OWASP WebGoat don't cover persistent bidirectional connections. The 356 GitHub stars and zero licensing friction mean you can spin up a shared lab environment across your entire engineering org without budget negotiation. Skip this if your team only cares about HTTP-based OWASP Top 10 coverage; DVWS is narrow by design and teaches one thing well rather than serving as a general-purpose vulnerable app.
Security teams running internal CTF competitions or capture-the-flag training programs should use Mellivora for its lightweight, self-hosted architecture; you get full control over challenge creation and scoring without vendor lock-in or monthly bills. With 453 GitHub stars and PHP-based deployment, it's proven enough for university programs and mid-sized security training operations that want to host their own infrastructure. Skip this if you need a managed platform with slick UX or integration into a broader security awareness suite; Mellivora requires hands-on administration and assumes your team is comfortable with open-source tooling.
A deliberately vulnerable web application that uses WebSocket communication to provide a training environment for learning about WebSocket-related security vulnerabilities.
Mellivora Mellivora is a PHP-based CTF engine that provides comprehensive competition hosting capabilities with challenge management, team scoring, and administrative tools for cybersecurity competitions.
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Common questions about comparing OWASP Damn Vulnerable Web Sockets (DVWS) vs Mellivora for your cyber range training needs.
OWASP Damn Vulnerable Web Sockets (DVWS): A deliberately vulnerable web application that uses WebSocket communication to provide a training environment for learning about WebSocket-related security vulnerabilities..
Mellivora: Mellivora Mellivora is a PHP-based CTF engine that provides comprehensive competition hosting capabilities with challenge management, team scoring, and administrative tools for cybersecurity competitions..
Both serve the Cyber Range Training market but differ in approach, feature depth, and target audience.
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