Avatar

Labs / File Upload Bypass

  • Daily Challenge
  • Released 07 Aug 2025
The lab needs to be started first.
Need help to start?
Daily Challenge

File Upload Bypass - Challenge Description

Challenge Overview

Welcome to SocialConnect! This challenge features a social networking platform where users can create accounts, share posts, and upload profile avatars. The platform provides a typical social media experience with user registration, login, and profile customization features.

Learning Objectives

  • Understand web application security testing methodologies
  • Learn about file upload functionality in web applications
  • Practice security assessment techniques on realistic applications
  • Develop skills in web application penetration testing

Challenge Details

The SocialConnect platform allows users to upload avatar images for their profiles. Your goal is to explore the application's security mechanisms and test the file upload functionality to discover potential vulnerabilities and retrieve the hidden flag from the server.

Technical Background

File upload functionality is a common feature in web applications that allows users to upload content such as profile pictures, documents, or media files. Testing file upload security is an important aspect of web application security assessment to ensure proper validation and handling of user-submitted content.

First Blood 🩸
3xpl0it3r