CVE-2022-22999: Westerndigital My Cloud DL2100 Firmware

Medium severity, CVSS 4.8. EPSS: 0.4% chance of exploitation in the next 30 days.

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. As a result, it may be possible to gain control over the authenticated session, steal data, modify settings, or redirect the user to malicious websites. The scope of impact can extend to other components.

Affected products

• Westerndigital My Cloud DL2100 Firmware: before 5.23.114 (fixed in 5.23.114)
• Westerndigital My Cloud DL4100 Firmware: before 5.23.114 (fixed in 5.23.114)
• Westerndigital My Cloud EX2100 Firmware: before 5.23.114 (fixed in 5.23.114)
• Westerndigital My Cloud EX2 Ultra Firmware: before 5.23.114 (fixed in 5.23.114)
• Westerndigital My Cloud EX4100 Firmware: before 5.23.114 (fixed in 5.23.114)
• Westerndigital My Cloud Mirror g2 Firmware: before 5.23.114 (fixed in 5.23.114)
• Westerndigital My Cloud PR2100 Firmware: before 5.23.114 (fixed in 5.23.114)
• Westerndigital My Cloud PR4100 Firmware: before 5.23.114 (fixed in 5.23.114)

Published 2022-07-25. Last modified 2026-06-17.