Input validation vulnerability in Crelly Slider 1.1.1

The Crelly Slider plugin for WordPress has a security vulnerability if someone with administrative privileges uses it with versions up to 1.1.1. This vulnerability allows an attacker to add extra code into an existing query which can be used to access sensitive information from the database. This vulnerability occurs because the “id” parameter in the admin.php file is not properly escaped and the existing SQL query is not properly prepared.