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Vulnerability record · CVE-2022-22999 · published 25 July 2022

CVE-2022-22999: Westerndigital my cloud pr2100 firmware cross-site scripting vulnerability

Westerndigital · My Cloud Pr2100 Firmware

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.

4.8 CVSS 3.1 Medium EPSS 0.38% · top 70.1% CWE-79 · Cross-site scripting
4.8CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.westerndigital.com/support/product-security/wdc-22011-my-cloud-firmware-version-5-23-114 Vendor Advisory
https://www.westerndigital.com/support/product-security/wdc-22011-my-cloud-firmware-version-5-23-114 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-29844Westerndigital my cloud pr2100 firmware relative path traversal vulnerabilityA vulnerability in the FTP service of Western Digital My Cloud OS 5 devices running firmware versions prior to 5.26.119 allows an attacker to read an…EPSS 36%9.8CVE-2022-29843Westerndigital my cloud pr2100 firmware os command injection vulnerabilityA command injection vulnerability in the DDNS service configuration of Western Digital My Cloud OS 5 devices running firmware versions prior to 5.26.…EPSS 1.2%9.8CVE-2022-22995Westerndigital my cloud pr2100 firmware link following vulnerabilityThe combination of primitives offered by SMB and AFP in their default configuration allows the arbitrary writing of files. By exploiting these combin…EPSS 2.7%9.8CVE-2019-9950Westerndigital my cloud firmware weak password requirements vulnerabilityWestern 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 PR21…EPSS 2.3%8.8CVE-2019-9949Westerndigital my cloud firmware link following vulnerabilityWestern Digital My Cloud Cloud, Mirror Gen2, EX2 Ultra, EX2100, EX4100, DL2100, DL4100, PR2100 and PR4100 before firmware 2.31.183 are affected by a …EPSS 3.0%7.8CVE-2022-23000Westerndigital my cloud pr2100 firmware vulnerabilityThe Western Digital My Cloud Web App [https://os5.mycloud.com/] uses a weak SSLContext when attempting to configure port forwarding rules. This was e…EPSS 0.19%7.5CVE-2022-36331Westerndigital my cloud pr2100 firmware authentication bypass by spoofing vulnerabilityWestern Digital My Cloud, My Cloud Home, My Cloud Home Duo, and SanDisk ibi devices were vulnerable to an impersonation attack that could allow an un…EPSS 0.59%5.5CVE-2023-22817Westerndigital my cloud pr2100 firmware server-side request forgery (ssrf) vulnerabilityServer-side request forgery (SSRF) vulnerability that could allow a rogue server on the local network to modify its URL using another DNS address to …EPSS 0.24%

Source: NIST National Vulnerability Database (record CVE-2022-22999), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.