CVE-2022-3590 (https://wpscan.com/vulnerability/c8814e6e-78b3-4f63-a1d3-6906a84c1f11): https://blog.sonarsource.com/wordpress-core-unauthenticated-blind-ssrf/ WordPress is affected by an unauthenticated blind SSRF in the pingback feature. Because of a TOCTOU race condition between the validation checks and the HTTP request, attackers can reach internal hosts that are explicitly forbidden. Unfortunately, seems unfixed upstream and known for a while.