Magento Community Edition and Enterprise Edition before 2.0.10 and 2.1.x before 2.1.2 have CSRF resulting in deletion of a customer address from an address book, aka APPSEC-1433.
Magento Community Edition and Enterprise Edition before 2.0.10 and 2.1.x before 2.1.2 have XSS via e-mail templates that are mishandled during a preview, aka APPSEC-1503.
A stored cross-site scripting (XSS) vulnerability exists in Magento 2.1 prior to 2.1.19, Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3. An authenticated user can inject arbitrary Javascript code by manipulating section of a POST request related to customer's email address.
Insufficient server-side validation of user input could allow an attacker to bypass file upload restrictions in Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2.