Free Vulnerable Web App Lab
A sandboxed, intentionally-vulnerable web app to safely practise SQL injection, XSS, IDOR and command injection — with the secure fix for each. Free, from Neurobyte.
About this lab
The safest way to understand an attack is to perform it — in an environment built for it. This free vulnerable web app lab gives you a sandboxed, intentionally insecure application where you can practise SQL injection, cross-site scripting (XSS), insecure direct object references (IDOR) and command injection safely and legally, then see the secure fix for each.
It's the practical counterpart to theory: learning that an injection flaw exists is one thing; exploiting one and then patching it makes the lesson stick. The lab is ideal for developers, testers and aspiring penetration testers. Never test these techniques on systems you don't own or have permission to assess — that's exactly why a dedicated lab exists.
Frequently asked questions
What can I practise in the vulnerable web app lab?
Hands-on exploitation of common web vulnerabilities — SQL injection, cross-site scripting (XSS), insecure direct object references (IDOR) and command injection — each followed by the secure coding fix.
Is it legal and safe to use?
Yes. The lab is a self-contained, intentionally vulnerable sandbox built for learning, so you can practise safely. Never apply these techniques to systems you don't own or aren't authorised to test.
Who is the lab for?
Developers, QA and testers, and anyone learning offensive security or penetration testing who wants safe, legal, hands-on practice with real vulnerability classes.