The Redirection for Contact Form 7 plugin for WordPress is not secure and can be easily exploited by attackers. This can lead to them injecting harmful code into your website, potentially causing damage. This vulnerability exists in all versions up to 3.2.4 and can be exploited by anyone, without needing to log in. It is also possible for attackers to delete files using a specific technique in the plugin. In some cases, this could even allow them to take control of your website.