Train on Real Vulnerabilities
Practice exploiting real-world vulnerabilities in realistic web applications. Every challenge is based on actual bug bounty reports -- learn by doing, not just reading.
45+
Challenges
12,500+
Flags Captured
3,200+
Hackers
8
Vulnerability Types
Featured Challenges
Start Hacking Today
Hand-picked challenges covering the most common vulnerability classes found in real bug bounty programs.
NotifyHub -- Stored XSS in Comments
Find and exploit a stored XSS vulnerability in the comment system of a notification management platform.
142 solves
25 min
150 pts
ShopAPI -- SQL Injection in Search
Exploit a SQL injection vulnerability in the product search endpoint to extract sensitive data from the database.
287 solves
15 min
100 pts
CloudSync -- SSRF in Webhook Handler
Discover and exploit a server-side request forgery vulnerability in the webhook processing service to access internal resources.
53 solves
40 min
250 pts
How It Works
Three Steps to Level Up
Each lab is a sandboxed environment with a real vulnerability. No setup required -- just start hacking.
01
Start a Lab
Choose a challenge and spin up your own isolated environment. Each lab is a realistic application containing a real-world vulnerability.
02
Exploit the Vulnerability
Use your skills to identify and exploit the vulnerability. Each challenge is based on real bug bounty reports and disclosed vulnerabilities.
03
Capture the Flag
Extract the hidden flag to prove you have successfully exploited the vulnerability. Submit it to earn points and climb the leaderboard.
Ready to Find Your First Bug?
Join thousands of hackers improving their skills on real-world vulnerabilities. No credit card required.
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