Challenges
34 challenges
Health Check
A network diagnostic tool lets you check if hosts are reachable. The developer added some input filtering, but is it...
Greeting Card
A greeting card generator lets you create personalized messages. But what if the application takes your input a little...
Trust Issues
A secure authentication portal protects its admin panel with token-based access control. Log in as a guest and find a...
Talk Back
A debug echo service echoes back whatever you send. But it's echoing more than it should... Your mission: Make the...
Buffer Runner
A data processing utility from 2005 was recently discovered still running in production. The developers claim it's...
Internal Affairs
A handy URL preview tool for checking links. But what happens when you look inward? Note: This challenge requires...
Other People's Stuff
A document management system where everyone has their own files. But are they really private? Credentials: guest /...
Where's My Page?
A knowledge base with a curious page loading mechanism. Can you read between the lines... or directories? Note: This...
Welcome Admin
SecureBank's new enterprise portal just went live. The developers assured management that the login system is rock...