Western Digital My Cloud, My Cloud Mirror Gen2, My Cloud EX2 Ultra, My Cloud EX2100, My Cloud EX4100, My Cloud DL2100, My Cloud DL4100, My Cloud PR2100 and My Cloud PR4100 firmware before 2.31.174 is affected by an unauthenticated file upload vulnerability. The page web/jquery/uploader/uploadify.php can be accessed without any credentials, and allows uploading arbitrary files to any location on the attached storage.

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Western Digital My Cloud ddns-start on Linux allows Overflow Buffers.This issue affects My Cloud: before 5.29.102.

A Cross-Site Scripting (XSS) vulnerability on the My Cloud, My Cloud Home, SanDisk ibi, and WD Cloud web apps was found which could allow an attacker to redirect the user to a crafted domain and reset their credentials, or to execute arbitrary client-side code in the user’s browser session to carry out malicious activities.The web apps for these devices have been automatically updated to resolve this vulnerability and improve the security of your devices and data.