Header Hijacker

🕵️ Can you manipulate your way past the security headers?

Challenge 05 Jan 2026 Pro Exclusive Solution (Pro)

This secure web portal thinks it can control access using HTTP headers and client-side restrictions. 🛡️ But seasoned security researchers know that anything controlled by the client can be manipulated! 🔧 Master the art of header manipulation and discover how seemingly secure applications can be bypassed with the right techniques. 🎯

Flags

Points

82%

Success Rate

Start Your Challenge

~1-2 min setup

Dedicated server

Private instance

Industry standard

Open the target and find the flags

Flag

+5 pts

Ready to hack this lab?

Create a free account to start your own dedicated server, submit flags, and earn points on the leaderboard.

Start Hacking Free

Header Hijacker

Challenge 5 points

Writeup Guidelines

Share your solution approach, methodology, and insights. Your writeup will be reviewed before being published to the community. Earn +5 bonus points when your writeup is approved!

Requirements:

No flag content: Do not reveal actual flag values or passwords in your writeup
Include lab link: Your writeup must contain a direct link to this lab for reference
Educational focus: Explain your methodology, tools used, and learning insights

Writeup URL *

Link to your blog post, GitHub repository, or any platform where you've published your writeup
Remember to include this lab's URL in your writeup: https://hackerdna.com/labs/header-hijacker

Language *

Help others find writeups in their preferred language

Confirmation Required

I confirm that my writeup includes a direct link to this lab

Your writeup must reference this lab's URL: https://hackerdna.com/labs/header-hijacker

I confirm that my writeup does NOT contain flag content or critical information

Do not include actual flags, passwords, or other sensitive information that would spoil the challenge

Join 5,000+ hackers learning cybersecurity with hands-on labs. Create Account