Unauthenticated PHP Object Injection in Ultimate Maps by Supsystic

Executive Summary

This is an unauthenticated PHP Object Injection vulnerability in the Ultimate Maps by Supsystic plugin for WordPress, affecting versions prior to 1.5.0. Attackers can exploit this flaw to inject malicious PHP objects without authentication, potentially leading to code execution, SQL injection, or other attacks if a suitable POP chain exists.

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Detection Guidance

To detect this vulnerability, check if the Ultimate Maps by Supsystic plugin version is below 1.5.0. Inspect WordPress installations for the plugin and verify the version number in the WordPress admin panel or via file system checks.

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Impact Analysis

This vulnerability allows attackers to execute arbitrary code, manipulate databases, access sensitive files, or disrupt services on your website. Since it requires no authentication, any unpatched version of the plugin is at high risk of compromise.

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Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR (data protection) and HIPAA (health data privacy) requirements. A successful exploit may result in data breaches, triggering legal penalties and compliance violations.

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Mitigation Strategies

Immediately update the Ultimate Maps by Supsystic plugin to version 1.5.0 or later. If updating is not possible, apply the mitigation rule provided by Patchstack to block attacks until the update is completed.

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