Input validation vulnerability in Back Link Tracker 1.0.0

The Back Link Tracker plugin for WordPress has a security vulnerability that affects all versions up to 1.0.0. This is because the plugin does not properly check for a security code when performing a certain function. This could allow someone without proper access to the site to insert harmful code into a database query if they can trick the site administrator into clicking on a link. However, because they cannot get a response from the query, the potential for harm is limited.