The NLL com.nll.cb (aka ACR Phone) application through 0.330-playStore-NoAccessibility-arm8 for Android allows any installed application (with no permissions) to place phone calls without user interaction by sending a crafted intent via the com.nll.cb.dialer.dialer.DialerActivity component.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.