Simple Directory Traversal

📁 Can you escape the directory and access restricted files?

Challenge 14 Jan 2026 Pro Exclusive Solution (Pro)

This simple file viewer uses direct string concatenation to build file paths, creating the perfect opportunity for directory traversal attacks. 📁 Directory traversal is a fundamental web vulnerability that allows attackers to access files outside the intended directory, potentially exposing sensitive system files and configuration data. The application trusts user input without validation - a classic mistake that opens the door to file system exploitation! 🎯