CVE-2023-22815

Post-authentication remote command injection vulnerability on Western Digital My Cloud OS 5 devices

MEDIUM
6.7
CVSS Score
Published: June 30, 2023 at 09:07 PM UTC
Updated: June 17, 2026 at 05:36 AM UTC
12 products affected across 1 vendorMy Cloud OSMy Cloud PR4100My Cloud EX4100

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Severity
MEDIUM6.7
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Post-authentication remote command injection vulnerability in Western Digital My Cloud OS 5 devices that could allow an attacker to execute code in the context of the root user on vulnerable CGI files. This vulnerability can only be exploited over the network and the attacker must already have admin/root privileges to carry out the exploit. An authentication bypass is required for this exploit, thereby making it more complex. The attack may not require user interaction. Since an attacker must already be authenticated, the confidentiality impact is low while the integrity and availability impact is high. This issue affects My Cloud OS 5 devices: before 5.26.300.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.26.300
Affected range stops below 5.26.300, so it looks safe — our inference, not a vendor statement
westerndigital-wd-cloud (environment) · westerndigital-my-cloud (same device) · westerndigital-my-cloud-dl2100 (same device) · westerndigital-my-cloud-dl4100 (same device) · westerndigital-my-cloud-ex2-ultra (same device) · westerndigital-my-cloud-ex2100 (same device) · westerndigital-my-cloud-ex4100 (same device) · westerndigital-my-cloud-mirror-g2 (same device) · westerndigital-my-cloud-pr2100 (same device) · westerndigital-my-cloud-pr4100 (same device)
v < 5.26.300
Affected range stops below 5.26.300, so it looks safe — our inference, not a vendor statement
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78CWE-77

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