performing-http-parameter-pollution-attack

Installation
SKILL.md

Performing HTTP Parameter Pollution Attack

When to Use

  • When testing web applications for input validation bypass vulnerabilities
  • During WAF evasion testing to split attack payloads across duplicate parameters
  • When assessing how different technology stacks handle duplicate HTTP parameters
  • During API security testing to identify parameter precedence issues
  • When testing OAuth or payment processing flows for parameter manipulation

Prerequisites

  • Burp Suite Professional with Intruder and Repeater modules
  • Understanding of HTTP protocol and query string parsing
  • Knowledge of server-side parameter handling differences (first, last, array, concatenated)
  • cURL or httpie for manual parameter crafting
  • Target application technology stack identification (Apache, IIS, Tomcat, Node.js, etc.)

Legal Notice: This skill is for authorized security testing and educational purposes only. Unauthorized use against systems you do not own or have written permission to test is illegal and may violate computer fraud laws.

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First Seen
Mar 18, 2026