Executive Summary

CVE-2026-24939 is a Broken Access Control vulnerability in the WordPress Modula Image Gallery Plugin versions up to and including 2.13.6.

This issue arises from missing authorization, authentication, or nonce token checks within certain functions, potentially allowing unprivileged users to perform actions reserved for higher-privileged roles.

It requires only Subscriber-level privileges to exploit and is classified under the OWASP Top 10 category A1: Broken Access Control.

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Impact Analysis

This vulnerability allows users with low-level privileges (Subscriber-level) to perform actions that should be restricted to higher-privileged roles.

However, the impact is considered low severity with a CVSS score of 4.3, making exploitation unlikely and the threat low.

If exploited, it could lead to unauthorized changes or access within the Modula Image Gallery plugin functionality.

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability is related to missing authorization checks in the Modula Image Gallery WordPress plugin up to version 2.13.6. Detection typically involves verifying the plugin version and checking for unauthorized access attempts.'}, {'type': 'paragraph', 'content': 'You can detect if your system is vulnerable by checking the installed version of the Modula Image Gallery plugin. For example, within your WordPress installation directory, you can run a command to find the plugin version:'}, {'type': 'list_item', 'content': "grep -i 'Version' wp-content/plugins/modula-best-grid-gallery/readme.txt"}, {'type': 'paragraph', 'content': 'Additionally, monitoring web server logs for suspicious access patterns or unauthorized actions performed by users with Subscriber-level privileges may help detect exploitation attempts.'}] [1]

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Mitigation Strategies

[{'type': 'paragraph', 'content': 'The primary mitigation step is to update the Modula Image Gallery plugin to version 2.13.7 or later, where this vulnerability has been fixed.'}, {'type': 'paragraph', 'content': "If immediate updating is not possible, consider restricting access to the plugin's functionality by limiting Subscriber-level user permissions or applying additional access control measures at the web server or application level."}, {'type': 'paragraph', 'content': 'Using automated update tools such as those provided by Patchstack can also help ensure timely patching of this and other vulnerabilities.'}] [1]

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Compliance Impact

The provided information does not specify any direct impact of the vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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