Unauthenticated Password Reset in Frontend User Extension

Executive Summary

This vulnerability allows an unauthenticated attacker to reset passwords and re-enable existing frontend user accounts by exploiting a flaw in the extension's invitation controller. The controller fails to stop processing after redirecting on invalid input, such as missing hash or non-existent users, specifically affecting version 8.x of the extension.

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Detection Guidance

This vulnerability can be detected by checking for unauthorized password resets or account re-enabling in the extension's invitation controller logs. Look for requests to the controller with invalid inputs (missing hash, non-existent users, or disabled accounts) followed by successful password reset operations.

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Impact Analysis

An attacker could gain unauthorized access to user accounts by resetting passwords and re-enabling disabled accounts. This could lead to data breaches, unauthorized actions, or impersonation of legitimate users.

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Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR's data protection principles and HIPAA's security requirements. It may result in non-compliance, legal penalties, and reputational damage.

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Mitigation Strategies

Update the extension to the latest version that fixes this issue. If an update is not available, disable the extension immediately to prevent exploitation. Review user accounts for unauthorized changes or re-enabling of disabled accounts.

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