Academy · Labs

The Lab Universe

Hands-on exercises across every class of vulnerability. Read the brief, work it against your own target, and submit the flag. Points and your level are yours the moment you solve one — join the Academy to start tracking them.

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MasterRace condition

A TOCTOU gap in a file upload

Slip through the window between a check and the action it guards.

100 pts · 180 minStart →
MasterRace condition

Double-spend across two endpoints at once

Slip through the window between a check and the action it guards.

100 pts · 180 minStart →