The com.enflick.android.TextNow (aka TextNow: Call + Text Unlimited) application 24.17.0.2 for Android enables any installed application (with no permissions) to place phone calls without user interaction by sending a crafted intent via the com.enflick.android.TextNow.activities.DialerActivity component.
The Android application exports a component for use by other applications, but does not properly restrict which applications can launch the component or access the data it contains.
The attacks and consequences of improperly exporting a component may depend on the exported component: