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A new challenge goes live for a limited time. When the timer ends, the environment is sealed and only the names of those who finished them remain. That’s the deal. Make the window count.

1 challenge every few weeks 14 days each
3,409
CTF flags caught
1,052
Total solvers
107
Milestones solved
23
CTFs happened
Oct 2026·Live

Northline Pages: A Draft Went Live:
Red Teaming

DifficultyIntermediate to Advanced
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--Hrs
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A customer page on Northline Pages changed, but the publishing team cannot account for the release. You have been brought in to investigate the platform from the outside and determine how someone could reach production through its normal workflows. This is one continuous web application challenge. Each discovery gives you a reason to examine the next part of the system. The five flags mark meaningful progress through the investigation, ending with proof that you can reproduce the unauthorized change. Northline Pages is a functioning publishing platform with customer sites, accounts, and operational workflows. Its ordinary features contain the evidence you need. Examine the application, follow its requests and responses, and test the boundaries you uncover. The intended path requires hands-on web testing and careful reasoning it does not depend on brute force or guessed identifiers.

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