CVE-2025-67738
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-11

Last updated on: 2025-12-18

Assigner: MITRE

Description
squid/cachemgr.cgi in Webmin before 2.600 does not properly quote arguments. This is relevant if Webmin's Squid module and its Cache Manager feature are available, and an untrusted party is able to authenticate to Webmin and has certain Cache Manager permissions (the "cms" security option).
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Meta Information
Published
2025-12-11
Last Modified
2025-12-18
Generated
2026-06-16
AI Q&A
2025-12-12
EPSS Evaluated
2026-06-15
NVD
CVE-2025-67738
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
webmin webmin *
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.
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Detection Guidance

To detect this vulnerability, you should check if your Webmin installation is a version before 2.600 and if the Squid module with Cache Manager feature is enabled. Additionally, verify if untrusted users have authentication and the 'cms' Cache Manager permissions. There are no specific commands provided in the resources to detect exploitation attempts or presence of the vulnerability. However, you can check the Webmin version by running: `webmin --version` or checking the Webmin interface. To detect suspicious usage, monitor access logs for requests to `squid/cachemgr.cgi` with unusual or specially crafted arguments. Since the vulnerability involves improper quoting of arguments leading to possible command injection, monitoring for command injection patterns in logs or unusual command executions related to Squid cache manager may help. No explicit detection commands are provided in the resources. [1, 2]

Executive Summary

This vulnerability exists in the squid/cachemgr.cgi component of Webmin versions before 2.600. It occurs because the application does not properly quote arguments, which can be exploited if an untrusted party is able to authenticate to Webmin and has certain Cache Manager permissions (the "cms" security option).

Impact Analysis

The vulnerability can have a severe impact as indicated by its high CVSS score (8.5). It can lead to complete compromise of confidentiality, integrity, and availability of the affected system, since it allows an authenticated but untrusted user with specific permissions to exploit the improper argument quoting.

Mitigation Strategies

Upgrade Webmin to version 2.600 or later, which includes a fix that properly quotes arguments passed to the squid/cachemgr.cgi script, preventing command injection vulnerabilities. Ensure that only trusted users with appropriate Cache Manager permissions can authenticate to Webmin. Applying the patch or update that fixes the argument quoting issue will mitigate the vulnerability. [1, 2]

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