Mozilla Firefox before 46.0 on Android does not properly restrict JavaScript access to orientation and motion data, which allows remote attackers to obtain sensitive information about a device's physical environment, and possibly discover PIN values, via a crafted web site, a similar issue to CVE-2016-1780.

WebKit in Apple iOS before 9.3 does not prevent hidden web views from reading orientation and motion data, which allows remote attackers to obtain sensitive information about a device's physical environment via a crafted web site.