Provide references for CVE-2021-4381.
Where can I find more information about CVE-2021-4381?
References are available at: https://www.wordfence.com/threat-intel/vulnerabilities/id/ff5755dc-2262-47f6-ac3a-6bca9529d088?source=cve, https://blog.nintechnet.com/wordpress-ulisting-plugin-fixed-multiple-critical-vulnerabilities/, https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2456786%40ulisting&new=2456786%40ulisting&sfp_email=&sfph_mail=.