CVE-2024-13407 is a medium-severity vulnerability in the Omnipress plugin for WordPress, specifically affecting all versions up to and including 1.5.4. The flaw resides in the megamenu block, where insufficient authorization checks allow authenticated users with Contributor-level privileges or higher to bypass intended access restrictions. This bypass enables them to retrieve content from posts that are password-protected, private, or in draft status, which normally should be inaccessible to such users. The root cause is an authorization bypass (CWE-639) through a user-controlled key, meaning the plugin does not properly validate whether the requesting user has permission to view the requested post content. The vulnerability can be exploited remotely without user interaction, requiring only authenticated access at a contributor level or above. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N) indicates network attack vector, low attack complexity, privileges required, no user interaction, unchanged scope, and limited confidentiality impact without integrity or availability loss. No public exploits or patches are currently available, but the vulnerability is publicly disclosed and assigned by Wordfence. This issue underscores the risks of improper access control in WordPress plugins, which can lead to unintended data exposure of sensitive or unpublished content.

The primary impact of CVE-2024-13407 is unauthorized disclosure of sensitive content stored within WordPress sites using the Omnipress plugin. Attackers with contributor-level access can access private, draft, or password-protected posts, potentially exposing confidential business information, unpublished content, or personal data. This can lead to reputational damage, loss of competitive advantage, or violation of privacy regulations. Although the vulnerability does not affect data integrity or availability, the confidentiality breach alone can be significant for organizations relying on Omnipress for content management. The ease of exploitation (low complexity, no user interaction) increases risk, especially in environments where contributor accounts are common or where account compromise is possible. Since WordPress powers a large portion of websites globally, and Omnipress is a specialized plugin, the scope is limited to sites using this plugin but can be critical for those sites. No known exploitation in the wild reduces immediate risk but does not eliminate the threat of future attacks once exploit code becomes available.

To mitigate CVE-2024-13407, organizations should first check if they are using the Omnipress plugin on their WordPress sites and identify the version. Since no official patch is currently available, administrators should consider the following specific actions: 1) Restrict contributor-level user roles to trusted personnel only, minimizing the number of users who can exploit this vulnerability. 2) Temporarily disable or remove the Omnipress plugin if feasible until a patch is released. 3) Implement additional access control mechanisms at the web server or application firewall level to block unauthorized requests targeting the megamenu block or suspicious query parameters related to post retrieval. 4) Monitor logs for unusual access patterns by contributor accounts attempting to access private or draft content. 5) Follow vendor and WordPress security advisories closely for updates or patches addressing this vulnerability. 6) Consider applying custom code fixes or filters that enforce strict post access validation within the plugin if development resources are available. These steps go beyond generic advice by focusing on role management, plugin removal, and targeted monitoring to reduce exposure.