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Home CyberConverge 2026 The Hacker Left a Note
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The Hacker Left a Note

The Hacker Left a Note

  • Author: Shruthi

This is a web reconnaissance challenge where the flag is hidden through a chain of developer artifacts.

First, visit the homepage

Viewing the page source reveals a hidden comment:

1
<!-- TODO: remove debug endpoint before deployment -->

Following the clue, visit: /debug endpoint

The debug console contains a note mentioning that the backup log was saved as backup.txt in the static assets folder.

We then visit: /static/backup.txt

The log contains a temporary access code:

1
Temporary access code: 4832

The surrounding log indicates that the code is intended for the /profile endpoint.

Finally enter the code and the page reveals the flag.

Flag

FLAG{debugging_is_recon}
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