Gutentype Plugin Object Injection Vulnerability

Executive Summary

This vulnerability is a Deserialization of Untrusted Data flaw in the ThemeREX Group Gutentype WordPress theme. It allows attackers to inject malicious objects through untrusted input, leading to Object Injection. The issue affects versions up to 2.1.12 and can be exploited remotely without authentication.

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Detection Guidance

Detecting this vulnerability requires checking for the presence of the Gutentype theme version 2.1.12 or earlier. Inspect WordPress installations for the theme directory and verify the version in style.css or the theme details. No specific commands are provided in the context, but monitoring for unusual server activity or unauthorized PHP object injection attempts may help.

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Impact Analysis

Attackers can exploit this to execute harmful actions on the server, such as taking control of the website, stealing data, or installing malware. Since no authentication is required, the risk is high. Mass-exploit campaigns are already targeting this vulnerability.

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Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR and HIPAA requirements for data protection. A breach may result in legal penalties, reputational damage, and loss of trust due to non-compliance with these regulations.

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Mitigation Strategies

Immediately apply the mitigation rule provided by Patchstack to block attacks. Update the Gutentype theme to the latest version if available. If no patch exists, seek assistance from a hosting provider or developer to apply temporary fixes. Monitor for suspicious activity as this vulnerability is actively exploited.

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