Input validation vulnerability in Post Connector 1.0.9

The Post Connector plugin for WordPress is vulnerable to a type of security issue known as Stored Cross-Site Scripting. This means that if an attacker with administrator-level access or higher injects malicious code into a website, it could be executed when any user visits the affected page. This vulnerability affects versions 1.0.9 and below of the plugin, and only impacts multi-site installations or installations where a specific security setting has been disabled.