Sage X3 Stored XSS Vulnerability on ‘Edit’ Page of User Profile. An authenticated user can pass XSS strings the "First Name," "Last Name," and "Email Address" fields of this web application component. Updates are available for on-premises versions of Version 12 (components shipped with Syracuse 12.10.0 and later) of Sage X3. Other on-premises versions of Sage X3 are unaffected or unsupported by the vendor.