CVE-2018-9148 is a critical authentication bypass vulnerability affecting Western Digital WD My Cloud devices, specifically firmware version v04.05.00-320. The flaw stems from the device embedding session tokens (PHPSESSID) directly into filenames, allowing attackers to bypass authentication by simply listing directories. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While it can be exploited remotely without user interaction, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed in the CISA KEV catalog, indicating no known active exploitation. Community discussion and media coverage are also minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
04.05.00-320CPE matchmatch criteria | cpe:2.3:o:westerndigital:my_cloud_firmware:04.05.00-320:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.