CVE-2026-101859
Received Received - Intake

OS Command Injection in RaspAP WebGUI

Publication date: 2026-09-29

Last updated on: 2026-09-29

Assigner: VulDB

Description
A vulnerability has been found in RaspAP raspap-webgui up to 3.5.5. Affected by this vulnerability is the function escapeshellcmd of the file ajax/openvpn/del_ovpncfg.php of the component OpenVPN Configuration Handler. Such manipulation of the argument cfg_id leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-09-29
Last Modified
2026-09-29
Generated
2026-09-29
AI Q&A
2026-09-29
EPSS Evaluated
N/A
NVD
CVE-2026-101859
EUVD
EUVD-2026-88603

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
raspap raspap-webgui to 3.5.5 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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.
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

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Executive Summary

This vulnerability is an OS command injection flaw in RaspAP raspap-webgui versions up to 3.5.5. It exists in the OpenVPN Configuration Handler component, specifically in the escapeshellcmd function of the file ajax/openvpn/del_ovpncfg.php. The issue arises from improper handling of the cfg_id argument, allowing attackers to inject and execute arbitrary operating system commands remotely.

Detection Guidance

This vulnerability involves an OS command injection in RaspAP versions up to 3.5.5, specifically in the OpenVPN configuration handler. To detect it, check if your RaspAP installation is version 3.5.5 or earlier. Inspect the file ajax/openvpn/del_ovpncfg.php for improper use of escapeshellcmd with user-controlled input like cfg_id.

Impact Analysis

If exploited, this vulnerability could allow remote attackers to execute arbitrary commands on the affected system. This may lead to unauthorized access, data theft, or system compromise. Attackers could manipulate the cfg_id parameter to run malicious commands with the privileges of the web server process.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR (data protection) and HIPAA (health information privacy). Organizations using affected versions may face legal penalties, reputational damage, and increased scrutiny from regulators.

Mitigation Strategies

Immediately update RaspAP to the latest version beyond 3.5.5 if available. If no update exists, disable the OpenVPN configuration handler or restrict access to the vulnerable file. Monitor network traffic for unusual commands or unauthorized access attempts targeting the OpenVPN configuration.

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