Input validation vulnerability in Material Design Icons 0.0.5

The Material Design Icons plugin for WordPress has a security issue where hackers can insert harmful code into a website using the plugin’s shortcode feature. This can happen on any version of the plugin up to 0.0.5 because it does not properly prevent or remove dangerous code from user inputs. This means that attackers with a certain level of access can make the harmful code run whenever someone visits the infected page.