ZDI-26-386: Unraid Web Server ToggleState Command Injection Remote Code Execution Vulnerability
A command injection vulnerability exists in the Unraid Web Server's ToggleState.php component, allowing authenticated remote attackers to execute arbitrary code as the www-data user. This flaw is due to improper validation of user-supplied input before executing a system call. The vulnerability is rated critical with a CVSS score of 8.8 and affects Unraid versions prior to 7.3.0. It requires authentication to exploit and has no known exploits in the wild as of the advisory date. The issue was fixed in Unraid version 7.3.0.
AI Analysis
Technical Summary
CVE-2026-9773 is a command injection vulnerability in the ToggleState.php script of the Unraid Web Server. The vulnerability arises from insufficient validation of a user-supplied string used in a system call, enabling authenticated remote attackers to execute arbitrary code with the privileges of the www-data user. The vulnerability has a CVSS score of 8.8, indicating high severity. It affects Unraid versions before 7.3.0 and was reported to the vendor on 2026-04-22. The vendor released a fix in version 7.3.0. No known exploits have been observed in the wild at the time of disclosure.
Potential Impact
Successful exploitation allows an authenticated remote attacker to execute arbitrary code on the affected Unraid system with www-data user privileges. This can lead to full compromise of the affected system, including confidentiality, integrity, and availability impacts as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
Apply the official patch by upgrading Unraid to version 7.3.0 or later, where this vulnerability has been fixed. Since authentication is required to exploit this issue, ensure that access to the Unraid web interface is properly restricted and monitored. Patch status is confirmed by the vendor advisory.
ZDI-26-386: Unraid Web Server ToggleState Command Injection Remote Code Execution Vulnerability
Description
A command injection vulnerability exists in the Unraid Web Server's ToggleState.php component, allowing authenticated remote attackers to execute arbitrary code as the www-data user. This flaw is due to improper validation of user-supplied input before executing a system call. The vulnerability is rated critical with a CVSS score of 8.8 and affects Unraid versions prior to 7.3.0. It requires authentication to exploit and has no known exploits in the wild as of the advisory date. The issue was fixed in Unraid version 7.3.0.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9773 is a command injection vulnerability in the ToggleState.php script of the Unraid Web Server. The vulnerability arises from insufficient validation of a user-supplied string used in a system call, enabling authenticated remote attackers to execute arbitrary code with the privileges of the www-data user. The vulnerability has a CVSS score of 8.8, indicating high severity. It affects Unraid versions before 7.3.0 and was reported to the vendor on 2026-04-22. The vendor released a fix in version 7.3.0. No known exploits have been observed in the wild at the time of disclosure.
Potential Impact
Successful exploitation allows an authenticated remote attacker to execute arbitrary code on the affected Unraid system with www-data user privileges. This can lead to full compromise of the affected system, including confidentiality, integrity, and availability impacts as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
Apply the official patch by upgrading Unraid to version 7.3.0 or later, where this vulnerability has been fixed. Since authentication is required to exploit this issue, ensure that access to the Unraid web interface is properly restricted and monitored. Patch status is confirmed by the vendor advisory.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-386/","fetched":true,"fetchedAt":"2026-06-24T22:24:32.640Z","wordCount":182}
- Classification
- {"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}
Threat ID: 6a3c59a14853345fc1ee95bc
Added to database: 06/24/2026, 22:26:41 UTC
Last enriched: 07/23/2026, 23:12:33 UTC
Last updated: 08/08/2026, 00:41:15 UTC
Views: 86
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