A technical research portfolio exploring Cross-Site Scripting from browser internals to real-world exploitation, secure remediation, and modern web application defense.
Cross-Site Scripting is often reduced to payloads and proof-of-concepts. This research takes a different approach by examining why vulnerabilities exist, how browsers interpret untrusted input, how execution differs across contexts, and how modern defenses mitigate exploitation.
The portfolio combines browser internals, structured methodology, hands-on laboratory work, real-world vulnerability analysis, and secure coding practices to build a deeper understanding of modern Application Security.
- Browser Parsing & Rendering
- HTML Parsing Contexts
- JavaScript Execution Contexts
- Reflected XSS
- Stored XSS
- DOM-Based XSS
- Content Security Policy (CSP)
- WAF Bypass Concepts
- Browser Security
- Secure Coding Practices
- Real-World CVE Analysis
- Burp Suite Methodology
- Professional Vulnerability Reporting
- Application Security
- Vulnerability Research
- Root Cause Analysis
- Browser Security
- HTTP Request & Response Analysis
- Secure Coding
- Technical Documentation
- Security Testing Methodology
- Professional Vulnerability Reporting
Every vulnerability analyzed in this portfolio follows a structured methodology:
- Identify the injection point.
- Determine the execution context.
- Understand browser parsing behavior.
- Develop a reliable proof-of-concept.
- Analyze security impact.
- Document secure remediation.
- Generalize the underlying security principle.
This approach emphasizes understanding why a vulnerability exists rather than simply reproducing a payload.
- Cross-Site Scripting Fundamentals
- Browser Internals
- Source & Sink Analysis
- DOM-Based Security
- Context-Aware Payload Development
- CSP & Modern Browser Defenses
- WAF Bypass Techniques
- Exploit Chains
- Burp Suite Workflow
- DOM Clobbering
- Prototype Pollution
- Modern Framework Security
- Secure Development Practices
This research was conducted to explore Cross-Site Scripting from an engineering perspective rather than treating it as a collection of payloads.
The primary objectives were:
- Understand browser parsing and execution behavior
- Analyze how different XSS variants originate
- Study modern browser security mechanisms
- Explore secure coding and defensive strategies
- Build a structured methodology for vulnerability analysis and remediation
The complete research portfolio is available below.
➡️ Download XSS_Research_Portfolio.pdf
This research was conducted exclusively within authorized laboratory environments, including PortSwigger Web Security Academy, for educational purposes and defensive security research.
The techniques discussed are intended to improve secure software development, vulnerability analysis, and responsible security testing.