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Documentation Index

Fetch the complete documentation index at: https://docs.cveplayground.com/llms.txt

Use this file to discover all available pages before exploring further.

Every guided lab has five multiple choice questions, one per step. Each question has four choices. Exactly one is correct. The questions are not there for the points; they are there because reading a writeup is not the same as having understood it.

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The format

A question card sits at the bottom of every step. It has:
  • The question text, rendered from markdown.
  • Four choices, labelled A through D.
  • A submit button.
  • Space below for feedback after you answer.
Questions are paired with steps. The brief question asks about scope and impact. The patch question asks about the fix. The harden question asks you to generalise. You can see the walkthrough for the full breakdown.

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The three second wait

When a question first loads, the submit button is locked for three seconds. The wait is on purpose. The platform is not a guessing game. If the button were live the moment the page rendered, the obvious behaviour would be to click through four times and see which one lit up green. The three second floor pushes you to read the question and the choices before answering. After three seconds the button lights up. You can take as long as you want from there.

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Submitting

Click your choice, then submit. The platform records your answer and the page shows feedback within a second or two.
  • If you got it right, a green badge appears and the XP for that question is awarded. The next time you visit, the question is already marked complete.
  • If you got it wrong, a red badge appears and the explanation tells you why the wrong choice is wrong. You can try again immediately.
The platform tracks which choices you have already tried, so a second wrong attempt cannot land on a choice you already eliminated. After two wrong attempts, the question card stays open but you have effectively narrowed the field to two.

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How XP is awarded

XP is awarded the first time you answer a question correctly. The amount is fixed per question and depends on the lab. Easier labs award less; harder ones award more. The XP shown on the lab card in the catalog is the sum of all five questions. Specifically:
  • First correct attempt: full XP.
  • Subsequent correct attempts on the same question: no XP.
  • Wrong attempts: no XP, no penalty.
You cannot lose XP. Replaying a lab does not award XP again, but it also does not take anything away.

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Streaks

A streak is the number of consecutive days you have answered at least one question correctly. The current streak and your longest streak ever both show on your profile. The clock for streaks runs on your local time zone, which you set in settings. If your time zone is wrong, your streak might tick over at a strange hour. If you miss a day, the streak resets to zero the next time you log in. There is no streak freeze, no grace period. The streak is meant to be honest. A short, regular practice beats a marathon weekend. One question a day for a month puts you further ahead than ten questions on a Saturday once a month.

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Already answered, prior attempts

If you have answered a question before (in a previous session), the card shows the question with your prior verdict and your prior choice. You can leave it as is, or you can answer it again. Re-answering it correctly does not award XP. Re-answering it incorrectly does not undo the original credit. The point of this view is to revisit a lab months later and read the explanation again without losing your record.

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Why MCQs and not free form

A free form question would catch you cheating less effectively. With four choices, the platform can write three plausible wrong answers that catch the most common misunderstandings of the bug. A free form box would let you type “yes the patch fixes the bug” and move on without ever testing whether you know the why. The questions are also designed so the longest choice is rarely the correct one and the position of the correct answer is spread evenly across A, B, C, D. Test taking shortcuts will not help you here.

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What if a question is wrong

It happens. If you spot a question where you are confident the marked answer is wrong, or where two choices are both defensible, send the CVE ID and the question number to support. Question content is reviewed and patched when issues come in.

The five step walkthrough

What each step is for.

Leaderboard and profile

Where XP ends up.