Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Sitecore Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Cross-Site Scripting (XSS).This issue affects Sitecore Experience Manager (XM): from 9.2 through 10.4; Experience Platform (XP): from 9.2 through 10.4.
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003734