No patched version is available. The WordPress plugins review team was notified on Apr 12, 2023.
LEE SE HYOUNG (hackintoanetwork) discovered and reported this Cross Site Scripting (XSS) vulnerability in WordPress This Day In History Plugin. This could allow a malicious actor to inject malicious scripts, such as redirects, advertisements, and other HTML payloads into your website which will be executed when guests visit your site. This vulnerability has not been known to be fixed yet.