Input validation vulnerability in WPFront Notification Bar 3.3.2

The WPFront Notification Bar plugin for WordPress has a security issue where attackers can insert harmful code into web pages. This can happen if the plugin is not properly checking for malicious inputs and escaping them before displaying them to users. This vulnerability affects all versions up to 3.3.2 and can only be exploited by someone with administrator-level access. However, it only affects multi-site installations and those with a specific setting disabled.