Prior to v66.0.0.733.524 of Meta Horizon OS, OVRMediaService could be induced to send a privileged PendingIntent including a com.oculus.horizon CallerIdentity to an arbitrary application registering for com.oculus.systemactivities.SCREENSHOT via a broadcast receiver. That would allow the application to impersonate the com.oculus.horizon package towards any endpoint within the OS that uses CallerIdentity authentication.