Best Opensource Tool available for Security Testing of Web applications
I'm on to an R & D task for testing the security vulnerabilities that can happen in a web application. I want to use an open source tool.
There are many type of vulnerabilities like Cross Site Scripting, Denial of Service, File Access, Format Validation, Mass Assignment, SQL Injection, Session Setting, etc. So, I would like to have a best fit cross platform tool to do penetration testing in a best possible way.
w3af is a Web Application Attack and Audit Framework. The project’s goal is to create a framework to help you secure your web applications by finding and exploiting all web application vulnerabilities.
Alternativeto.net also lists some other open-source projects not mentioned in your linked lists.