WordPress login-block-ips plugin has an unspecified vulnerability

WordPress and WordPress plugin are both products of the WordPress Foundation. WordPress is a set of blogging platforms developed using the PHP language. WordPress plugin is an application plugin. WordPress login-block-ips plugin 1.0.0 and earlier versions have a security vulnerability that stems from the function check_is_login_page() using header for IP checking, which can be exploited by attackers to to spoof the IP in the http request header to deceive the server.