Western Digital WD My Cloud v04.05.00-320 devices embed the session token (aka PHPSESSID)…
Priority MEDIUM 48CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
Western Digital WD My Cloud v04.05.00-320 devices embed the session token (aka PHPSESSID) in filenames, which makes it easier for attackers to bypass authentication by listing a directory. NOTE: this can be exploited in conjunction with CVE-2018-7171 for remote authentication bypass within a product that uses My Cloud.
Why it matters now
EPSS 0.03613 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:westerndigital:my_cloud_firmware:04.05.00-320:*:*:*:*:*:*:* | 04.05.00-320 | Vulnerable | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
- cpe:2.3:o:westerndigital:my_cloud_firmware:04.05.00-320:*:*:*:*:*:*:* Versions 04.05.00-320 Vulnerable ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-9148
- 2026-10-03 Alias added: GHSA-hrr3-c733-fj52
References
Exploit 1
More Westerndigital My Cloud Firmware vulnerabilities
- TI-2020-16509 Addressed remote code execution vulnerability in cgi_api.php that allowed escalation of… CVSS 3.1CRITICAL 9.8
- TI-2020-16829 An issue was discovered on Western Digital My Cloud NAS devices before 5.04.114. CVSS 3.1CRITICAL 9.8
- TI-2020-16510 Addressed remote code execution vulnerability in DsdkProxy.php due to insufficient… CVSS 3.1CRITICAL 9.8
- TI-2020-15773 Addressed remote code execution vulnerability in reg_device.php due to insufficient… CVSS 3.1CRITICAL 9.8
- TI-2022-16678 Impersonation attack causing an Authentication Bypass on Western Digital devices CVSS 3.1CRITICAL 10.0
- TI-2020-16511 Addressed remote code execution vulnerability in AvailableApps.php that allowed… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-9148 · CVE Program
- CVE-2018-9148 · NVD
- FIRST EPSS
- GHSA-hrr3-c733-fj52 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences