You can detect Favicon based AEM applications using this tool.
AEM - Adobe Experience Manager is an enterprise-grade CMS. AEM is widely used by high-profile companies. AEM is big and complex. AEM also has 26 known CVEs. Misconfigured AEM applications can cause many critical vulnerabilities.
If attackers detect the technology used, they will try to detect vulnerabilities related to this application.
Only use components that do not have known vulnerabilities, only use components that when combined to not introduce a security vulnerability, and ensure that a misconfiguration does not cause any vulnerabilities.