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High 8.2
Cross-site Scripting Vulnerability in USB Backups App
Western Digital My Cloud devices are vulnerable to a cross side scripting vulnerability that can allow a malicious user with elevated privileges access to drives being backed up to construct and inject JavaScript payloads into an authenticated user's browser.…
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High 7.3
Weak Default SSL use in Port Forwarding Service
The Western Digital My Cloud Web App [https://os5.mycloud.com/] uses a weak SSLContext when attempting to configure port forwarding rules. This was enabled to maintain compatibility with old or outdated home routers. By using an "SSL" context instead of "TLS"…
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High 8.8
Insufficient Verification of Data Authenticity Remote Code Execution Vulnerability on Western Digital My Cloud devices.
A remote code execution vulnerability was discovered on Western Digital My Cloud devices where an attacker could trick a NAS device into loading through an unsecured HTTP call. This was a result insufficient verification of calls to the device. The vulnerabil…
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High 7.8
Limited Server-Side Request Forgery vulnerability on Western Digital My Cloud devices.
A limited SSRF vulnerability was discovered on Western Digital My Cloud devices that could allow an attacker to impersonate a server and reach any page on the server by bypassing access controls. The vulnerability was addressed by creating a whitelist for val…
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High 7.8
Limited authentication bypass vulnerability on Western Digital My Cloud devices
A limited authentication bypass vulnerability was discovered that could allow an attacker to achieve remote code execution and escalate privileges on the My Cloud devices. Addressed this vulnerability by changing access token validation logic and rewriting ru…
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High 7.8
Command injection through unsecured HTTP calls on Western Digital My Cloud devices
A malicious user on the same LAN could use DNS spoofing followed by a command injection attack to trick a NAS device into loading through an unsecured HTTP call. Addressed this vulnerability by disabling checks for internet connectivity using HTTP.