CVE-2026-78211
Received Received - Intake

OS Command Injection in 4MOSAn GCB Doctor

Publication date: 2026-08-24

Last updated on: 2026-08-24

Assigner: TWCERT/CC

Description
4MOSAn GCB Doctor developed by 4MOSAn Security Technology has a OS Command Injection vulnerability. Unauthenticated remote attackers can inject malicious commands through an unremoved ADOdb test page parameter, thereby executing arbitrary system commands on the server.

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Meta Information

Published
2026-08-24
Last Modified
2026-08-24
Generated
2026-08-24
AI Q&A
2026-08-24
EPSS Evaluated
N/A
NVD
CVE-2026-78211
EUVD
EUVD-2026-64706

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
4mosan gbc_doctor From 20260621 (inc)
4mosan gbc_doctor to 20260621 (exc)

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.

Attack-Flow Graph

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Executive Summary

CVE-2026-78211 is an OS Command Injection vulnerability in 4MOSAn GCB Doctor software. Unauthenticated remote attackers can inject malicious commands through an unremoved ADOdb test page parameter, allowing arbitrary system command execution on the server.

Detection Guidance

Check for the presence of the vulnerable 4MOSAn GCB Doctor software versions before 20260621. Inspect web server logs for access to the ADOdb test page parameter. Look for unusual system command execution patterns or unauthorized commands in server logs.

Impact Analysis

This vulnerability allows attackers to execute arbitrary commands on the server, potentially leading to full system compromise, data theft, or unauthorized access. It can disrupt services and enable further attacks within the network.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face legal penalties, reputational damage, and loss of compliance certifications.

Mitigation Strategies

Upgrade to version 20260621 or later of 4MOSAn GCB Doctor. Apply the FreeBSD-GCB Management Center security update. Remove or restrict access to the ADOdb test page parameter to prevent command injection.

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