A device API endpoint was missing access controls on Western Digital My Cloud OS 5 iOS and Anroid Mobile Apps, My Cloud Home iOS and Android Mobile Apps, SanDisk ibi iOS and Android Mobile Apps, My Cloud OS 5 Web App, My Cloud Home Web App and the SanDisk ibi Web App. Due to a permissive CORS policy and missing authentication requirement for private IPs, a remote attacker on the same network as the device could obtain device information by convincing a victim user to visit an attacker-controlled server and issue a cross-site request. This issue affects My Cloud OS 5 Mobile App: before 4.21.0; My Cloud Home Mobile App: before 4.21.0; ibi Mobile App: before 4.21.0; My Cloud OS 5 Web App: before 4.26.0-6126; My Cloud Home Web App: before 4.26.0-6126; ibi Web App: before 4.26.0-6126.

A device API endpoint was missing access controls on Western Digital My Cloud OS 5 Mobile App on Android, iOS, Western Digital My Cloud Home Mobile App on iOS, Android, SanDIsk ibi Mobile App on Android, iOS, Western Digital WD Cloud Mobile App on Android, iOS, Western Digital My Cloud OS 5 Web App, Western Digital My Cloud Home Web App, SanDisk ibi Web App and the Western Digital WD Web App. Due to a permissive CORS policy and missing authentication requirement for private IPs, a remote attacker on the same network as the device could obtain device information by convincing a victim user to visit an attacker-controlled server and issue a cross-site request.This issue affects My Cloud OS 5 Mobile App: through 4.21.0; My Cloud Home Mobile App: through 4.21.0; ibi Mobile App: through 4.21.0; WD Cloud Mobile App: through 4.21.0; My Cloud OS 5 Web App: through 4.26.0-6126; My Cloud Home Web App: through 4.26.0-6126; ibi Web App: through 4.26.0-6126; WD Web App: through 4.26.0-6126.