Input validation vulnerability in Goal Tracker for Patreon 0.4.6

The Patreon plugin for WordPress called “Goal Tracker” has a security issue in versions 0.4.6 and below. This is because it does not properly clean up and protect against harmful code. This vulnerability can be exploited by attackers who have administrator-level access or higher. They can insert their own code into pages, which will run whenever a user visits that page. This only affects websites with multiple sites or if a specific security setting is disabled.