Threats affecting pkg:nuget/Sitecore/experiencemanager

Sitecore Experience Manager (XM) and Experience Platform (XP) versions 10.1 to 10.1.4 rev.011974 PRE, all versions of 10.2, 10.3 to 10.3.3 rev.011967 PRE, and 10.4 to 10.4.1 rev.011941 PRE contain a hardcoded user account. Unauthenticated and remote attackers can use this account to access administrative API over HTTP.