Provide references for CVE-2021-4384.
Where can I find more information about CVE-2021-4384?
References are available at: https://www.wordfence.com/threat-intel/vulnerabilities/id/1355bc94-7110-4d61-855e-78889e58dcad?source=cve, https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/, https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/, https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/, https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/, https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/, https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/, https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/, https://plugins.trac.wordpress.org/browser/photo-contest/tags/1.0.6/includes/view/ajax-function.php#L559, https://plugins.trac.wordpress.org/browser/photo-contest/tags/1.0.6/includes/admin/admin-page-galleries.php#L102.