CVE-2018-9148

9.8 criticalEPSS 3.6%

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.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.6% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)
CWE: CWE-287
Published: 2018-03-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

westerndigital:my_cloud_firmware

References

https://exploit-db.com/exploits/44350/
https://exploit-db.com/exploits/44350/

Check your stack JSON