Input validation vulnerability in Broken Link Checker 2.2.3

The Broken Link Checker plugin for WordPress has a security vulnerability that allows hackers to inject harmful code into certain pages. This can happen if the plugin’s settings are not properly checked for dangerous content. This issue affects all versions up to 2.2.3 and can only be exploited by attackers who have administrator-level permissions. It mainly affects websites with multiple installations or those that have disabled certain security measures.