Input validation vulnerability in Simple Social Media Share Buttons – Social Sharing for Everyone 5.4.0

The Simple Social Media Share Buttons plugin for WordPress has a security issue that could affect versions up to 5.4.0. This is because it does not properly clean up and protect the information entered into it. This means that someone who has administrator access or higher could add harmful code to a page that will run whenever someone visits it. This only affects websites that have multiple sites or have disabled the unfiltered_html feature.