Authorization Bypass in User Profile Picture Plugin

Executive Summary

This vulnerability is an Authorization Bypass Through User-Controlled Key in the Cozmoslabs User Profile Picture plugin (metronet-profile-picture). It occurs due to incorrectly configured access control security levels, allowing an attacker to bypass authorization mechanisms by manipulating user-controlled keys.

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Detection Guidance

The provided context does not include specific detection methods or commands for identifying the Authorization Bypass Through User-Controlled Key vulnerability in the Cozmoslabs User Profile Picture plugin (metronet-profile-picture).

Generally, to detect such vulnerabilities, you might check for the presence of the vulnerable plugin version (<= 2.6.3) in your WordPress installation. This can be done by:

• Reviewing the installed plugins list in the WordPress admin dashboard under 'Plugins' to verify the version of the User Profile Picture plugin.
• Using WordPress CLI commands like 'wp plugin list' to list all installed plugins and their versions.
• Inspecting the plugin directory manually via command line: 'ls -la wp-content/plugins/metronet-profile-picture' and checking the plugin's readme or main PHP file for version information.

However, these steps only confirm the presence of the plugin and its version, not the active exploitation of the vulnerability.

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Impact Analysis

The impact of this vulnerability is limited to integrity loss, as indicated by the CVSS score. An attacker with high privileges could exploit the incorrect access control to perform unauthorized actions related to user profile pictures, potentially modifying or replacing them without proper authorization.

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Compliance Impact

This vulnerability involves an Authorization Bypass Through User-Controlled Key, which allows attackers to exploit incorrectly configured access control security levels. This could lead to unauthorized access or modification of user data, depending on the context in which the plugin is used.

For compliance with standards and regulations:

• GDPR: The vulnerability may result in unauthorized access to personal data, violating GDPR's requirements for data protection and access control (Articles 5, 25, and 32). If exploited, it could lead to data breaches, triggering reporting obligations under Article 33.
• HIPAA: If the plugin is used in a healthcare context handling protected health information (PHI), this vulnerability could lead to unauthorized disclosure or alteration of PHI, violating the HIPAA Security Rule (45 CFR Part 164, Subpart C).

The CVSS v3.1 score of 2.7 (Low) indicates limited impact, but the potential for non-compliance depends on the sensitivity of the data exposed and the regulatory environment in which the plugin operates.

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Mitigation Strategies

Based on the provided context, the following immediate steps are recommended to mitigate the vulnerability:

• Update the User Profile Picture plugin to the latest version if a patched version is available. The vulnerability affects versions up to and including 2.6.3, so ensure you are running a version higher than this.
• If no patched version is available, consider disabling or removing the plugin until an update is released to eliminate the risk.
• Monitor the plugin's official repository or the vendor's website for security advisories and updates.
• Restrict access to the WordPress admin dashboard to trusted users only, as the CVSS vector indicates the vulnerability requires high privileges (PR:H).
• Review user roles and permissions to ensure no unauthorized users have elevated privileges that could exploit this vulnerability.

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