CVE-2025-67581 is a security vulnerability identified in the themetechmount TrueBooker plugin, a WordPress-based appointment booking system. The vulnerability is classified as a missing authorization issue caused by incorrectly configured access control security levels within the plugin. This misconfiguration allows unauthorized users to bypass intended access restrictions, potentially enabling them to perform actions or access sensitive data without proper permissions. The affected versions include all releases up to and including version 1.1.0, with no specific version marked as unaffected. The vulnerability does not require prior authentication, which significantly lowers the barrier for exploitation. Although no known exploits have been reported in the wild, the nature of the flaw suggests that attackers could leverage it to manipulate appointment data, access private user information, or disrupt booking operations. The absence of a CVSS score indicates that the vulnerability is newly published and has not yet undergone formal severity assessment. However, the potential impact on confidentiality, integrity, and availability is considerable given the role of the plugin in managing sensitive scheduling information. The vulnerability was published on December 9, 2025, and assigned by Patchstack, a known vulnerability tracking entity. The lack of available patches at the time of publication necessitates immediate attention from administrators using TrueBooker to prevent unauthorized access and potential data breaches.

For European organizations, the impact of CVE-2025-67581 can be significant, particularly for businesses relying on TrueBooker for managing customer appointments and sensitive scheduling data. Unauthorized access could lead to exposure of personal information, manipulation or cancellation of appointments, and disruption of business operations, undermining customer trust and potentially violating data protection regulations such as GDPR. Small and medium enterprises (SMEs) in sectors like healthcare, legal services, and personal care, which often use appointment booking plugins, are especially vulnerable. The breach of confidentiality and integrity could result in reputational damage and financial losses. Additionally, the ease of exploitation without authentication increases the risk of automated attacks or mass exploitation attempts. The absence of known exploits currently provides a window for proactive mitigation, but the threat landscape could rapidly evolve. Organizations failing to address this vulnerability may face compliance issues and increased exposure to cyberattacks targeting their customer management systems.

1. Monitor the vendor’s official channels for patches or updates addressing CVE-2025-67581 and apply them promptly once available. 2. Until a patch is released, restrict access to the TrueBooker plugin’s administrative and booking management interfaces by IP whitelisting or VPN access controls. 3. Implement strict role-based access controls (RBAC) within WordPress to limit plugin usage to trusted administrators only. 4. Conduct regular audits of user permissions and plugin configurations to detect and correct any misconfigurations. 5. Enable detailed logging and monitoring of booking-related activities to identify suspicious or unauthorized actions early. 6. Consider temporarily disabling the TrueBooker plugin if it is not critical or if alternative secure booking solutions are available. 7. Educate staff on the risks associated with unauthorized access and encourage reporting of anomalies. 8. Employ web application firewalls (WAFs) with custom rules to block unauthorized access attempts targeting the plugin’s endpoints. 9. Review and enhance overall WordPress security posture, including timely updates of core, themes, and plugins to reduce attack surface.