Vaelsys 4.1.0 HTTP POST Request /tree/tree_server.php xajaxargs os command injection

Summaryinfo

A vulnerability was found in Vaelsys 4.1.0. It has been declared as critical. This issue affects some unknown processing of the file /tree/tree_server.php of the component HTTP POST Request Handler. Such manipulation of the argument xajaxargs leads to os command injection. This vulnerability is listed as CVE-2026-2952. The attack may be performed from remote. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Vaelsys 4.1.0. It has been rated as critical. Affected by this issue is some unknown processing of the file /tree/tree_server.php of the component HTTP POST Request Handler. The manipulation of the argument xajaxargs with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-2952. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is available at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:tree/tree_server.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• Vaelsys

Version

• 4.1.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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CVSSv3info

CVSSv2info

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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #755166: Vaelsys Vaelsys V4 4.1.0 Command Injection / Remote Code Execution (by CW.Wong)

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