Provide references for CVE-2021-39337.
Where can I find more information about CVE-2021-39337?
References are available at: https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39337, https://github.com/BigTiger2020/word-press/blob/main/job-portal.md, https://plugins.trac.wordpress.org/browser/job-portal/trunk/admin/jobs_function.php#L99.