HIGH CWE-78
CVE-2026-9772
Unraid Web Server FileUpload Command Injection Remote Code Execution Vulnerability
8.8/ 10
CVSS 3.0
High severity
1.9%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 80% of all CVEs
Not listed
CISA KEV catalog
No confirmed in-the-wild exploitation on CISA's list.
Timeline
- Published
- Jun 24, 2026
- Updated
- Jun 26, 2026
- First covered
- Jul 2, 2026
- Latest story
- 4 months ago
Summary
Unraid Web Server FileUpload Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unraid. Authentication is required to exploit this vulnerability.The specific flaw exists within FileUpload.php. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the www-data user. Was ZDI-CAN-30116.
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Attack profile
Attack vectorNetwork
ComplexityLow
PrivilegesLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected products
- Unraid1161ec120