HTTP Parameter Pollution Generator
Generate HTTP Parameter Pollution (HPP) test payloads to bypass WAFs, override parameters, and exploit server-side parameter precedence logic.
HTTP Parameter Pollution
HPP exploits how different technologies handle duplicate HTTP parameters — some take the first, last, or concatenate values. This can bypass WAF rules, override security controls, or poison cache keys. Test across URL query strings, POST bodies, and cookies. Common targets include PHP (last wins), ASP.NET (first wins), and Java (first wins). Authorized testing only.