The AEM Forms add-on for versions 6.5.5.0 (and below) and 6.4.8.1 (and below) is affected by a stored XSS vulnerability that allows users with βAuthorβ privileges to store malicious scripts in fields associated with the Forms component. These scripts may be executed in a victim’s browser when they open the page containing the vulnerable field.
https://helpx.adobe.com/security/products/experience-manager/apsb20-56.html
https://helpx.adobe.com/security/products/experience-manager/apsb20-56.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9734