Provide references for CVE-2019-16781.
Where can I find more information about CVE-2019-16781?
References are available at: https://wpvulndb.com/vulnerabilities/9976, https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/, https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v, https://hackerone.com/reports/731301, https://seclists.org/bugtraq/2020/Jan/8, https://www.debian.org/security/2020/dsa-4599, https://www.debian.org/security/2020/dsa-4677.