Command Injection in Guardian Language-System

Executive Summary

CVE-2026-34107 is an unauthenticated OS command injection vulnerability in the Guardian Language-System. It occurs because the 'id' GET parameter in the translate.php file is passed directly into a PHP exec() call without any sanitization or validation.

This means an attacker can append shell metacharacters to the 'id' parameter and execute arbitrary operating system commands on the server remotely, without needing to authenticate.

Useful 0 Not Useful 0

Impact Analysis

This vulnerability can have severe impacts because it allows an unauthenticated remote attacker to execute arbitrary OS commands on the affected server.

• Complete compromise of the server hosting the Guardian Language-System.
• Potential data theft, data loss, or unauthorized data modification.
• Disruption of service or denial of service by executing malicious commands.
• Use of the compromised server as a pivot point for further attacks within the network.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability can be detected by testing the translate.php endpoint for command injection via the 'id' GET parameter. Since the parameter is passed directly into a PHP exec() call without sanitization, sending shell metacharacters in the 'id' parameter can reveal if arbitrary OS commands are executed.

• Use curl or wget to send requests with shell metacharacters appended to the 'id' parameter, for example: curl "http://target/translate.php?id=1;id"
• Check server responses or side effects for command execution results, such as output of 'id' or other harmless commands.
• Monitor network traffic or logs for unusual command execution or unexpected system calls triggered by requests to translate.php.

Useful 0 Not Useful 0

Mitigation Strategies

Immediate mitigation steps include restricting access to the vulnerable translate.php endpoint, applying input validation or sanitization to the 'id' parameter to prevent shell metacharacters, and implementing authentication to prevent unauthenticated access.

If possible, update or patch the Guardian Language-System to a version where this vulnerability is fixed.

As a temporary measure, consider disabling the translate.php functionality or isolating the affected server to limit potential exploitation.

Useful 0 Not Useful 0