CVE-2026-25314 identifies a missing authorization vulnerability in the WP Messiah TOP Table Of Contents WordPress plugin, specifically affecting versions up to and including 1.3.31. The vulnerability arises from incorrectly configured access control security levels within the plugin, allowing unauthorized users to bypass intended restrictions. This can lead to unauthorized access to plugin functionality or data, potentially enabling attackers to view, modify, or disrupt the table of contents features on affected WordPress sites. The vulnerability does not require user interaction or authentication, increasing its risk profile. Although no exploits are currently known in the wild and no patches have been released, the flaw represents a significant security gap. The plugin is widely used to enhance content navigation on WordPress sites, making it a common target. The lack of a CVSS score necessitates an assessment based on the nature of the vulnerability, which indicates a high severity due to the direct impact on access control and the ease of exploitation. Organizations relying on this plugin should conduct immediate audits to identify vulnerable instances and implement compensating controls while awaiting vendor remediation.

For European organizations, the missing authorization vulnerability in the WP Messiah TOP Table Of Contents plugin could lead to unauthorized access to content management features, potentially exposing sensitive information or allowing unauthorized content manipulation. This can undermine the integrity and confidentiality of website content, damage organizational reputation, and facilitate further attacks such as privilege escalation or data exfiltration. Public-facing websites, especially those hosting sensitive or regulated information, are at higher risk. The disruption of content navigation features could also impact availability and user experience. Given the widespread use of WordPress across Europe, organizations in sectors like government, education, media, and e-commerce could be particularly affected. The absence of known exploits provides a window for proactive mitigation, but the ease of exploitation and lack of authentication requirements increase the urgency for action.

1. Immediately inventory all WordPress installations to identify instances of the WP Messiah TOP Table Of Contents plugin, particularly versions up to 1.3.31. 2. Disable or uninstall the plugin on sites where it is not essential to reduce attack surface. 3. Implement strict access control policies at the web server and application level to restrict access to plugin-related endpoints. 4. Monitor web server logs and WordPress activity logs for unusual access patterns or unauthorized attempts targeting the plugin. 5. Employ Web Application Firewalls (WAF) with custom rules to block suspicious requests related to the plugin’s functionality. 6. Engage with the plugin vendor or community to track the release of official patches and apply them promptly once available. 7. Educate site administrators about the risks of missing authorization vulnerabilities and the importance of timely updates. 8. Consider temporary content delivery or caching solutions to minimize direct plugin interaction until remediation is complete.