Provide references for CVE-2021-4366.
Where can I find more information about CVE-2021-4366?
References are available at: https://www.wordfence.com/threat-intel/vulnerabilities/id/a9892dd1-3939-41a9-a828-fa1bf7d96eb8?source=cve, https://blog.nintechnet.com/wordpress-pwa-for-wp-and-amp-plugin-fixed-vulnerabilities/, https://wpscan.com/vulnerability/b38a51d7-375e-4cca-88ba-ccab796ac134.