Missing Authorization in Flatsome Theme

Executive Summary

This vulnerability is a Missing Authorization issue in the UX-themes Flatsome theme. It allows attackers to exploit incorrectly configured access control security levels in Flatsome versions up to and including 3.20.5.

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Detection Guidance

The provided context does not include specific detection methods or commands for identifying the Missing Authorization vulnerability in UX-themes Flatsome (CVE-2026-57729).

Generally, to detect such vulnerabilities, you may need to check the installed version of the Flatsome theme on your WordPress site. If the version is 3.20.5 or lower, the system is likely vulnerable.

• Check the Flatsome theme version via the WordPress admin dashboard: Navigate to Appearance > Themes and look for the Flatsome theme details.
• Alternatively, inspect the theme files directly. The version is typically listed in the style.css file located in the Flatsome theme directory (e.g., /wp-content/themes/flatsome/style.css).

For network-level detection, vulnerability scanners like Nessus, OpenVAS, or WPScan may be used to identify outdated or vulnerable WordPress themes, but the context does not provide specific scanner signatures or commands.

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Impact Analysis

The vulnerability can lead to unauthorized access because of missing authorization checks. According to the CVSS score (7.5), it can be exploited remotely without privileges or user interaction and can result in high confidentiality impact, meaning sensitive information could be exposed.

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Compliance Impact

This vulnerability involves a missing authorization flaw, which can lead to unauthorized access to sensitive data or systems. This type of issue may impact compliance with several standards and regulations.

• GDPR: The vulnerability could result in unauthorized access to personal data, violating GDPR's requirements for data protection and confidentiality (Articles 5, 25, and 32). Organizations may face penalties if they fail to implement appropriate security measures to prevent such access.
• HIPAA: For entities handling protected health information (PHI), this vulnerability could lead to unauthorized disclosure of PHI, violating the HIPAA Privacy and Security Rules. This may result in non-compliance and potential fines.
• Other standards: The vulnerability may also conflict with requirements in frameworks like ISO 27001, which mandates access control and authorization mechanisms to protect sensitive information.

The CVSS vector (C:H) indicates a high impact on confidentiality, which is a critical concern for compliance with these regulations.

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Mitigation Strategies

Based on the provided context, the following steps can be taken to mitigate the Missing Authorization vulnerability in UX-themes Flatsome (CVE-2026-57729):

• Update the Flatsome theme to the latest version if a patch is available. The vulnerability affects versions up to and including 3.20.5, so upgrading beyond this version may resolve the issue.
• If an update is not immediately available, consider disabling the Flatsome theme temporarily and switching to a default or alternative theme to reduce exposure.
• Monitor the vendor's official website or security advisories for patches or workarounds. Since the assigner is [email protected], checking Patchstack's advisories may provide additional guidance.
• Implement strict access controls and monitoring for your WordPress admin panel to limit unauthorized access attempts, as the vulnerability may allow exploitation of incorrectly configured access control.

The CVSS score indicates a high risk of unauthorized information disclosure, so prioritizing these steps is recommended.

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