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A beginner-friendly picoCTF guide—complete challenges using only the webshell, no Linux or VM needed!

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picoCTF_writeup (Webshell-Only)

An easy, VM-free guide to complete picoCTF challenges using only the picoCTF webshell! Perfect for newcomers exploring the security field who want to dive into picoCTF without setting up Linux or virtual machines.

Project Overview

This project is designed for beginners interested in cybersecurity and looking to tackle picoCTF without additional installations. It provides a practical, accessible way to engage in challenges using only the webshell provided by picoCTF, making it a convenient entry point into the security field.

Features

  • Zero Setup: Use the picoCTF webshell — no local installs.

  • Step-by-Step Solutions: Clear, annotated walkthroughs for each challenge.

  • Beginner-Focused: Explanations assume no prior Linux or security experience.

  • Progressive Difficulty: Organized by challenge pages.

  • Open to PRs: Community contributions drive completeness and clarity.

Prerequisite

  • A picoCTF account (free).

  • Web browser to access the built-in webshell.

Write-up Structure

The write-ups are organized by challenge pages, with step-by-step solutions and explanations designed to be clear and beginner-friendly:

Contributing

Whether you're new to security or an experienced practitioner, your contributions can help make this project a comprehensive guide for picoCTF beginners. Contributions could include solutions, explanations, or improvements to existing sections.

  1. Fork the repository.
  2. Create a branch for your feature: git checkout -b your-feature
  3. Make your edits, then commit and push your changes.
  4. Submit a pull request for review.

Note

This guide is a work in progress. Your PRs are greatly appreciated!

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A beginner-friendly picoCTF guide—complete challenges using only the webshell, no Linux or VM needed!

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