WordPress Vulnerabilities and How to Fix Them

If you want to see all the top attack and how to defend, please go to the Source.

Vulnerability # 1: SQL Injection & URL Hacking.
The problem: WordPress is a database-backed platform
that executes server-side scripts in PHP. Both of these characteristic
can make WordPress vulnerable to malicious URL insertion attacks.
Commands are sent to WordPress via URL parameters, which can be abused