Get the Whitepaper called Secure coding to prevent some common vulnerabilities (critical/high level) in Web API .NET.
You can download it from the following link: https://packetstormsecurity.com/files/download/154726/secure-preventative-coding.pdf
Source: https://packetstormsecurity.com/files/154726/Secure-Coding-To-Prevent-Some-Common-Vulnerabilities-In-Web-API-.NET.html