The ChatBot for WordPress is vulnerable to Stored Cross-Site Scripting via the FAQ Builder in versions 4.8.6 through 4.9.6 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. NOTE: This vulnerability is a re-introduction of CVE-2023-4253.

The AI ChatBot WordPress plugin before 4.7.8 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)