guardian language-system complex_start.php exec ID os command injection

Summaryinfo

A vulnerability was found in guardian language-system. It has been classified as critical. This affects the function exec of the file complex_start.php. This manipulation of the argument ID causes os command injection. This vulnerability is registered as CVE-2026-34110. Remote exploitation of the attack is possible. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as critical was found in guardian language-system (unknown version). Affected by this vulnerability is the function exec of the file complex_start.php. The manipulation of the argument id with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Guardian language-system passes the id GET parameter directly into a PHP exec() call in complex_start.php (line 14) without sanitization: exec(\"php jobs/complex.php \".$login_session.\" \".$_GET['id'].\" ...\"). No authentication is required. An unauthenticated remote attacker can append shell metacharacters to execute arbitrary OS commands on the server.

The weakness was published by philopentest. The advisory is shared at gist.github.com. This vulnerability is known as CVE-2026-34110 since 03/25/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

By approaching the search of inurl:complex_start.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch e42c395ec4b03fe62973a669c9209a673838b8a4 is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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• guardian

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• language-system

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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