An unauthenticated attacker can embed a hidden access to a Biller Direct URL in a frame which, when loaded by the user, will submit a cross-site scripting request to the Biller Direct system. This can result in the disclosure or modification of non-sensitive information.

SAP Biller Direct allows an unauthenticated attacker to craft a legitimate looking URL. When clicked by an unsuspecting victim, it will use an unsensitized parameter to redirect the victim to a malicious site of the attacker's choosing which can result in disclosure or modification of the victim's information.