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.
CWE/SANS Top 25 Most Dangerous Programming Errors : The CWE/SANS Top 25 Most Dangerous Software Errors is a list of the most widespread and critical errors that can lead to serious vulnerabilities in so...
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 ...
webhint : webhint is a linting tool that will help you with your site's accessibility, speed, security and more, by checking your code for best practices and co...
API Security Checklist : Checklist of the most important security countermeasures when designing, testing, and releasing your API.
The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.