XSS Playground

🔓 Can you exploit this vulnerable message board?

Challenge 17 Dec 2025 Pro Exclusive Solution (Pro)

🎯 Master Cross-Site Scripting (XSS) attack vectors and JavaScript payload construction
🛠️ Use browser developer tools and DOM manipulation techniques for client-side exploitation
📊 XSS affects 84% of web applications according to OWASP security reports
🚀 Advance your cybersecurity career with hands-on web application penetration testing skills

Flags

Points

64%

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

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XSS Playground

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

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

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

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