IronWASP (Iron Web application Advanced Security testing Platform) is an open source system for web application vulnerability testing. It is designed to be customizable to the extent where users can create their own custom security scanners using it. Though an advanced user with Python/Ruby scripting expertise would be able to make full use of the platform, a lot of the tool's features are simple enough to be used by absolute beginners.
IronWASP makes use of the following excellent Free/Open Source libraries:
- Html Agility Pack
Download and more info: http://ironwasp.org