Unauthenticated Privilege Escalation in KiviCare WordPress Plugin

Executive Summary

The KiviCare WordPress plugin before version 4.5.2 has a vulnerability where its unauthenticated registration endpoint does not restrict assignable roles. This allows attackers to create a privileged clinic-staff account, specifically a doctor role, without authentication.

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Detection Guidance

Check if the KiviCare WordPress plugin version is below 4.5.2 by inspecting the plugin files or WordPress admin panel. Look for unauthorized user accounts with the 'doctor' role in the WordPress user management section.

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Impact Analysis

An attacker exploiting this vulnerability could gain full access to sensitive patient records, billing information, and clinic data. This could lead to unauthorized data exposure, manipulation, or theft of confidential information.

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Compliance Impact

This vulnerability likely violates compliance requirements under GDPR and HIPAA due to unauthorized access to protected health information. It could result in legal penalties, data breach notifications, and reputational damage for affected organizations.

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Mitigation Strategies

Immediately update the KiviCare plugin to version 4.5.2 or later. Review all user accounts for any unauthorized 'doctor' role accounts and remove them. Monitor for suspicious activity in patient records or billing data.

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