The Custom 404 Pro plugin 3.2.8 for WordPress has XSS via the wp-admin/admin.php?page=c4p-main page parameter.Referenceshttps://wordpress.org/plugins/custom-404-pro/#developershttps://www.pluginvulnerabilities.com/2019/06/25/other-vulnerability-data-sources-miss-that-a-reflected-xss-vulnerability-in-custom-404-pro-hasnt-been-fixed/
