Input validation vulnerability in ImageMagick Sharpen Resized Images 1.1.7

The ImageMagick Sharpen Resized Images plugin for WordPress has a security issue that can be exploited by hackers. This happens when the plugin is used with versions up to and including 1.1.7. The problem is caused by not properly filtering and protecting the input and output of admin settings. As a result, attackers who have administrator-level permissions or higher can insert harmful code into pages, which will run whenever a user visits the affected page. This only affects websites with multiple installations or where the option to filter unfiltered HTML has been turned off.