Provide references for CVE-2021-38337.
Where can I find more information about CVE-2021-38337?
References are available at: https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38337, https://plugins.trac.wordpress.org/browser/rsvpmaker-excel/tags/1.2/phpexcel/PHPExcel/Shared/JAMA/docs/download.php#L61.