HTML Purifier : HTML Purifier is a standards-compliant HTML filter library written in PHP. HTML Purifier will not only remove all malicious code (better known as XSS)...
XSS game : Warning: You are entering the XSS game area.
XSS Filter Evasion Cheat Sheet - OWASP : This article is focused on providing application security testing professionals with a guide to assist in Cross Site Scripting testing.
How to systematically secure anything : Security engineering is the discipline of building secure systems.
Its lessons are not just applicable to computer security. In fact this repo aims to...
OWASP Mutillidae II : OWASP Mutillidae II is a free, open source, deliberately vulnerable web-application providing a target for web-security enthusiest. Mutillidae can be ...
The following rules are intended to prevent all XSS in your application. While these rules do not allow absolute freedom in putting untrusted data into an HTML document, they should cover the vast majority of common use cases.