In WordPress before 5.2.4, unauthenticated viewing of certain content is possible because the static query property is mishandled.
https://www.debian.org/security/2020/dsa-4677
https://www.debian.org/security/2020/dsa-4599
https://wpvulndb.com/vulnerabilities/9909
https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
https://seclists.org/bugtraq/2020/Jan/8
https://lists.debian.org/debian-lts-announce/2019/11/msg00000.html
https://github.com/WordPress/WordPress/commit/f82ed753cf00329a5e41f2cb6dc521085136f308