The give plugin before 2.4.7 for WordPress has XSS via a donor name.
https://wpvulndb.com/vulnerabilities/9584
https://wordpress.org/plugins/give/#developers
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-6318
https://blog.sucuri.net/2019/05/wordpress-plugin-give-stored-xss-for-donors.html