The FastBots plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
https://plugins.trac.wordpress.org/browser/fastbots-ai-chatbots/trunk/settings-page.php#L59
https://plugins.trac.wordpress.org/browser/fastbots-ai-chatbots/trunk/fastbots.php#L32
https://plugins.trac.wordpress.org/browser/fastbots-ai-chatbots/tags/1.0.12/settings-page.php#L59
https://plugins.trac.wordpress.org/browser/fastbots-ai-chatbots/tags/1.0.12/fastbots.php#L32