The reCAPTCHA Jetpack WordPress plugin through 0.2.2 does not have CSRF check in some places, and is missing sanitisation as well as escaping, which could allow attackers to make logged-in admin add Stored XSS payloads via a CSRF attack.
https://wpscan.com/vulnerability/6e09e922-983c-4406-8053-747d839995d1/