Discovering a Reflected XSS Vulnerability: My Journey into Microsoft’s

8 min readJun 14, 2024


The Beginning

One quiet afternoon, driven by curiosity and a passion for cybersecurity, I decided to explore the main domain of Xbox: Little did I know, this exploration would lead to the discovery of a significant security vulnerability that could potentially impact numerous users.

The Exploration

Navigating to, I began my journey by using the search functionality on the website. Here’s a detailed account of my discovery process:

Go to the Main Domain:

Navigate to

Testing the Search Field:

Visit the link:

Injecting the Payload:

Using my #IBRAHIMXSS Tool, I tested the search field with various inputs. Out of 2500 payloads, the tool identified one working payload: //j\javascript:alert(document.domain). This payload was not injected manually by me but was discovered by the #IBRAHIMXSS Tool.

Observing the Result:

The payload was executed, confirming the presence of a reflected Cross-Site Scripting (XSS) vulnerability. This discovery highlights the efficiency of the #IBRAHIMXSS Tool. Manually testing 2500 payloads would be impractical and extremely time-consuming, but with my tool, I found the vulnerability in just under half a minute. This proves the tool’s capability to uncover vulnerabilities quickly and accurately, which would otherwise be missed or take an enormous amount of time to discover manually.


The Discovery

Reflected XSS Vulnerability

I discovered a reflected Cross-Site Scripting (XSS) vulnerability on the main domain of Xbox ( Reflected XSS attacks, also known as non-persistent attacks, occur when a malicious script is reflected off a web application to the victim’s browser.

Vulnerability Details:

  • Title: Reflected XSS at
  • Vulnerable Parameter: q
  • Payload: //j\javascript:alert(document.domain)

YEEEEYYY Bounty: $2000 USD

The Impact

This vulnerability can be exploited to execute scripts in the user’s browser session, potentially leading to various malicious activities such as session hijacking, data theft, or malicious redirections.

Reporting the Vulnerability

Proof of Concept (PoC)

I have attached images and a video demonstrating how to reproduce this attack with the payload. The PoC clearly shows the injection of the payload and the subsequent execution of the alert script.

By addressing these issues promptly, Microsoft can enhance the security of its applications, protect its users, and maintain trust in its brand. For further clarity, I have attached images and videos illustrating the exploitation of these vulnerabilities. If you have any questions or require additional information, feel free to contact me on my Linkedin profile:

Proof of Concept:

#IBRAHIMXSS Tool Presentation

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✅ Zero False Positives
💡 Unique Innovation
🎯 Flexible Detection Modes
🔗 POST and GET Requests
🌐 DOM-Based XSS
🔍 Path-Based Analysis
📱 JSON Web Apps
📊 Exportable Reports
🔓 WAF Bypass
🕵️‍♂️ Stealth Mode
💼 Efficiency
💥 Over 2500 Encoded Payloads
🛠️ Lab-Tested and Field-Ready
🔄 Multi-threading
⏳ Customizable Delay
⚡️ Scans 2500 payloads on 1 URL in only 15 seconds! ⚡️🔥
🔌 XSS into all kinds of extensions
🔒 Secure and Reliable
🌟 Continuous Updates
📈 High Performance
🔄 Automated Scanning
🔍 Accurate Detection Algorithms
🔧 Easy Configuration
📂 Support for Various Web Technologies
🚀 Rapid Deployment
🔎 Advanced Search and Filter Options
🔧 Customizable Payloads

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⏳ Customizable Delay

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Achieve unparalleled speed with the ability to scan 2500 payloads on 1 URL in just 15 seconds. This blazing-fast performance sets a new standard in web security, enabling rapid and thorough assessments.

🔌 XSS into all kinds of extensions🔌

Expand your security coverage with XSS detection into all kinds of URL extensions. The #IBRAHIMXSS Tool supports testing XSS vulnerabilities in various URL extensions, such as changing login.php to test payloads like {payload}.php. This ensures comprehensive testing across different file types and URL structures.

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🔄 Automated Scanning🔄

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🔍 Accurate Detection Algorithms🔍

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🔧 Easy Configuration🔧

Set up and start scanning quickly with easy configuration options. The #IBRAHIMXSS Tool offers user-friendly settings and intuitive controls, making it accessible even for those new to web security testing.

📂 Support for Various Web Technologies📂

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🚀 Rapid Deployment🚀

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Proven Performance in Bug Bounty Platforms

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Remember how many bug bounty platforms there are, and if you find just one XSS vulnerability on each of these platforms, you could earn over hundreds of thousands in a year by focusing clearly and testing all possible inputs and fields. You can be confident that if there is an XSS vulnerability, this tool will find it. You will be sure that it will find it.

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Deploying an alert box in a web app is like having a tiny pop-up comedian shout 'Surprise!' whenever you least expect it!