WordPress hasn’t received a security review since at least 2009 and has easy to spot security issues that haven’t been addressed. You can help make a security review of that happen while getting a security review of a WordPress plugin/theme you use or develop.
The process is simple. For every security review of a WordPress plugin/theme we complete, we will reduce our price to do a review of WordPress by the cost of that review. Our price to do a review of WordPress would be $6,100. So once $6,100 worth of plugin/theme reviews are handled, we would do a review of WordPress. Or if someone wanted to pay the amount remaining before the price reaches $0, we would do it then.