Authentication Bypass in Task Management System 1.0

Executive Summary

This vulnerability is an authentication bypass in the Code-Projects Task Management System 1.0. The issue occurs in the login process where the system fails to validate the password. Instead, it only checks if the provided email matches an active user in the database. This allows attackers to gain unauthorized access by submitting any password as long as the email is valid.

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Detection Guidance

To detect this vulnerability, check if the Task Management System accepts any password for a valid email. Test with a known email and random passwords. If login succeeds, the system is vulnerable. Inspect /index.php for missing password validation in the login handler.

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Impact Analysis

An attacker could exploit this flaw to access sensitive user data, including profiles, tasks, and comments, without proper authentication. Since the attack can be performed remotely, unauthorized individuals may gain full access to user accounts and associated data.

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Compliance Impact

This vulnerability could lead to unauthorized access to personal and sensitive data, violating GDPR and HIPAA requirements for data protection and access controls. Non-compliance may result in legal penalties, data breach notifications, and reputational damage.

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Mitigation Strategies

• Implement prepared statements for database queries to prevent SQL injection.
• Use password_verify() to validate passwords against stored hashes.
• Reject authentication immediately if password verification fails.
• Regenerate session IDs only after successful password verification.
• Add login rate limiting and failure logging to detect brute-force attempts.

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