Stored XSS in AEM's Content Repository Development Environment

AEM versions 6.5.5.0 (and below), 6.4.8.1 (and below), 6.3.3.8 (and below) and 6.2 SP1-CFP20 (and below) are affected by a stored XSS vulnerability that allows users with access to the Content Repository Development Environment to store malicious scripts in certain node fields. These scripts may be executed in a victim’s browser when visiting the page containing the vulnerable field.