Unauthenticated Privilege Escalation in Taskbot

Executive Summary

This is an unauthenticated privilege escalation vulnerability in the Taskbot WordPress plugin versions 6.6 and below. It allows low-privilege users to escalate their access to administrator level without authentication, gaining full control over the website.

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Detection Guidance

Check if the Taskbot plugin version 6.6 or below is installed on your WordPress site. Look for unauthorized administrator accounts or unusual privilege changes in user logs. Monitor for suspicious activity like unauthenticated requests escalating privileges.

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Impact Analysis

An attacker could exploit this to take complete control of your website, modify content, steal data, or install malicious software. Since it requires no authentication, it is highly dangerous and could be used in mass-exploit campaigns targeting many websites.

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Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR and HIPAA requirements for data protection and access control. Organizations may face legal penalties, data breach notifications, and reputational damage if exploited.

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Mitigation Strategies

Disable the Taskbot plugin immediately if possible. Apply Patchstack's temporary mitigation rule if available. Contact your hosting provider or developer for assistance. Avoid using the plugin until an official patch is released.

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