picoCTF Solutions

picoCTF 2021 Web Exploitation Hard

Some Assembly Required 3

Published: April 2, 2026

Writeup in progress

Currently making the solution for Some Assembly Required 3 and the walkthrough will be published here as soon as it's ready.

Check back soon - or follow our latest updates on the homepage- to be notified when the full writeup goes live.

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Useful tools for Web Exploitation

URL Encoder / DecoderEncode and decode URL-encoded (percent-encoded) strings. Useful for web exploitation challenges involving query parameters, form data, and HTTP headers.
JWT DecoderDecode JSON Web Tokens and inspect the header, payload, and signature. Useful for web exploitation challenges.
Base64 & Base32 DecoderDecode Base64 and Base32 strings with auto-detection. Multi-layer mode unwraps nested encodings automatically.

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