Unauthenticated PHP Object Injection in RegistrationMagic

Executive Summary

This is an unauthenticated PHP Object Injection vulnerability in the WordPress RegistrationMagic plugin versions 6.0.9.7 and below. It allows attackers to inject malicious PHP objects without needing prior access, potentially leading to code execution, SQL injection, or other attacks if a suitable POP chain exists.

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Detection Guidance

Detecting this vulnerability requires checking if the RegistrationMagic plugin version 6.0.9.7 or below is installed on your WordPress site. You can verify the plugin version by inspecting the plugin files or using WordPress admin panel under Plugins. No specific commands are provided in the resources, but monitoring for unusual activity or unauthorized access attempts may indicate exploitation.

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Impact Analysis

An attacker could exploit this to execute arbitrary code, manipulate databases, access sensitive files, or cause denial of service on your website. Since it requires no authentication, any unpatched site is at immediate risk of compromise.

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Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's integrity and confidentiality requirements or HIPAA's safeguards for protected health information. Non-compliance risks fines and legal penalties.

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Mitigation Strategies

Immediately update the RegistrationMagic plugin to version 6.0.9.8 or later. If updating is not possible, apply the mitigation rule provided by Patchstack to block attacks until the update is completed. Remove or disable the vulnerable plugin if updates are unavailable.

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