Discovering 10 XSS Vulnerabilities: My Journey into Microsoft’s Support Platforms

8 min readJun 14, 2024


The Beginning

On an ordinary day, my curiosity led me to explore Microsoft’s platforms, specifically focusing on potential vulnerabilities in the “Office” and Microsoft domains. I embarked on a meticulous journey to uncover hidden security flaws that could pose significant risks to users.

The Exploration

Collecting Microsoft Domains

I started by collecting all Microsoft domains, initially performing a brute force search. During this process, I stumbled upon a domain: Intrigued, I decided to delve deeper.

  1. Logging In:

2. Testing the Search Field:

  • I typed “ibrahim” in the search field and viewed the source page.
  • Observed that the word “ibrahim” was reflected as “Search results for ‘ibrahim’”.

3. Experimenting with Different Characters:

  • I typed ibrahim"> and noticed the reflection in the form 'ibrahim">', indicating that Microsoft filters my payload into HTML and ASCII.

The Breakthrough

After some time researching, I managed to bypass this encryption and escape using a unique payload: "><svg+onload=alert&#x60"1). This became evident as Microsoft filters the payload into HTML and ASCII.

Reviewing Related Microsoft Domains

I then reviewed all Microsoft domains related to “support” and identified several:













"><svg onload=alert&amp;#x27;#x00000040"1")>
"><SVG ONLOAD=&#97&#108&#101&#114&#116(&#x64&#x6f&#x63&#x75&#x6d&#x65&#x6e&#x74&#x2e&#x64&#x6f&#x6d&#x61&#x69&#x6e)>
"><svg onload=alert&#x00000040"1")>

Security Impact on Microsoft

Exposure of Sensitive Data: By bypassing ASCII and HTML encoding, an attacker can inject malicious scripts into Microsoft’s web platforms. This vulnerability allows attackers to execute unauthorized actions on behalf of users, potentially exposing sensitive data such as user credentials, personal information, and internal communications.

Cross-Site Scripting (XSS) Attacks: The ability to bypass encoding mechanisms leads to successful XSS attacks. These attacks can be used to steal session tokens, manipulate web content, or redirect users to malicious websites. XSS vulnerabilities compromise the integrity and security of user sessions and can lead to data breaches.


  • Bypassing filters
  • Affected hundreds of domains over Microsoft Platforms
  • Reflected XSS
  • Business continuity risk
  • Reputation damage

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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Discover the cutting-edge features of #IBRAHIMXSS:
With features like:

✅ 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

✅ Zero False Positives

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💡 Unique Innovation

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🎯 Flexible Detection Modes

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🔗 POST and GET Requests

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🌐 DOM-Based XSS

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🔍 Path-Based Analysis

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📱 JSON Web Apps

In the era of dynamic web applications, the #IBRAHIMXSS Tool excels at scanning JSON Web Apps. It understands and parses JSON, detecting vulnerabilities in modern web architectures.

📊 Exportable Reports

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🔓 WAF Bypass

Overcome the barriers of Web Application Firewalls with WAF bypass capabilities. The #IBRAHIMXSS Tool is designed to evade WAF protections, ensuring a true assessment of your web security.

🕵️‍♂️ Stealth Mode

Operate under the radar with stealth mode. Conduct scans discreetly without alerting potential intruders, maintaining the element of surprise and security.

💼 Efficiency

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💥 Over 2500 Encoded Payloads

Leverage the power of over 2500 encoded payloads to test a wide range of XSS attack vectors. This comprehensive approach ensures no stone is left unturned in your security assessments.

🛠️ Lab-Tested and Field-Ready

Rest assured with a tool that is lab-tested and field-ready. The #IBRAHIMXSS Tool has been rigorously tested in both controlled environments and real-world scenarios, guaranteeing its reliability and effectiveness.

🔄 Multi-threading

Speed up your scanning process with multi-threading. The #IBRAHIMXSS Tool efficiently utilizes system resources, allowing for concurrent scanning and faster results.

⏳ Customizable Delay

Tailor your scans with customizable delay settings. Control the pacing of your tests to match your specific environment and requirements, ensuring optimal performance and accuracy.

⚡️ Scans 2500 Payloads on 1 URL in Only 15 Seconds! ⚡️🔥

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.

🔒 Secure and Reliable🔒

Rely on a tool designed with security and reliability at its core. The #IBRAHIMXSS Tool employs robust security measures to ensure your data and processes remain protected, providing peace of mind as you test for vulnerabilities.

🌟 Continuous Updates🌟

Stay ahead of evolving threats with continuous updates. The #IBRAHIMXSS Tool is regularly updated with the latest techniques and payloads, ensuring it remains effective against the newest vulnerabilities and attack vectors.

📈 High Performance📈

Experience top-tier performance with the #IBRAHIMXSS Tool. Optimized for speed and efficiency, it delivers rapid and accurate results, allowing you to secure your applications without compromising on performance.

🔄 Automated Scanning🔄

Automate your security processes with ease. The #IBRAHIMXSS Tool supports fully automated scanning, enabling you to schedule regular scans and maintain continuous security monitoring with minimal manual intervention.

🔍 Accurate Detection Algorithms🔍

Benefit from precise and reliable vulnerability detection. The #IBRAHIMXSS Tool uses advanced algorithms to accurately identify XSS vulnerabilities, minimizing false positives and ensuring thorough coverage.

🔧 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📂

Ensure comprehensive security across different platforms. The #IBRAHIMXSS Tool supports a wide range of web technologies, providing versatile scanning capabilities for diverse web environments.

🚀 Rapid Deployment🚀

Deploy the #IBRAHIMXSS Tool swiftly and efficiently. Its straightforward installation process and minimal setup requirements mean you can start securing your applications in no time.

🔎 Advanced Search and Filter Options🔎

Streamline your analysis with advanced search and filter options. The #IBRAHIMXSS Tool allows you to quickly locate specific vulnerabilities and focus on the most critical issues, enhancing your productivity and effectiveness.

🔧 Customizable Payloads🔧

Customize your testing with tailored payloads. The #IBRAHIMXSS Tool supports the creation and use of custom payloads, allowing you to adapt your scans to specific needs and scenarios for more precise vulnerability detection.

Proven Performance in Bug Bounty Platforms

The #IBRAHIMXSS Tool has been proven on tens of bug bounty platforms, including Microsoft. In just 2 months, I discovered over 30 XSS vulnerabilities using this tool. Imagine the potential earnings: bug bounty platforms pay between $500 and $3000 for XSS findings. By investing a modest amount between $20 to $70 in this tool, you can earn tens of thousands of dollars. It’s a smart investment for passive income. Simply collect URLs, run the tool overnight, and wake up to results in the morning. That’s how I’ve been doing it, and now you can too.

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 $100k 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.

Embrace the future of web security with the #IBRAHIMXSS Tool and elevate your vulnerability detection to new heights. Don’t just secure your web applications — dominate the landscape with the most advanced XSS tool available.




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