Input validation vulnerability in Link Library 5.9.12.30

The link-library plugin for WordPress is vulnerable to a type of attack called Reflected Cross-Site Scripting in versions up to and including 5.9.12.29. This type of attack is possible because the plugin does not properly check and protect the data it receives from users. If an attacker is able to trick a user into clicking on a link, the attacker can inject malicious code into a page that the user sees, which can be used to take control of the user’s browser.