Individual skill
performing-http-parameter-pollution-attack
Executes HTTP Parameter Pollution attacks that inject duplicate request parameters to bypass input validation, WAF rules, and other security controls when front-end and back-end systems parse duplicate parameters differently. Use during web application penetration testing to test for parameter parsing inconsistencies or WAF/validation bypass.
skills/performing-http-parameter-pollution-attack/SKILL.md
Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57
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- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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- Repository stars (not skill ratings)
- 35,881
- Repository last updated
- Aug 31, 2026
- License
- Apache-2.0
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- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- http-parameter-pollution Declared skill tag
- hpp Declared skill tag
- waf-bypass Declared skill tag
- input-validation Declared skill tag
- web-security Declared skill tag
- parameter-injection Declared skill tag
- server-parsing Declared skill tag
- testing Derived category
- security Derived category
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LICENSEasset · 11,255 bytesSKILL.mdcore · 7,959 bytesSKILL.mdcore · 7,959 bytesSKILL.mdcore · 7,959 bytesSKILL.mdcore · 7,959 bytesSKILL.mdcore · 7,959 bytesSKILL.mdcore · 7,959 bytesSKILL.mdcore · 7,959 bytesSKILL.mdcore · 7,959 bytesreferences/api-reference.mddoc · 1,590 bytesscripts/agent.pyruns · 7,198 bytes
Read excerpt
# 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