CVE-2025-47543 is a Cross-Site Request Forgery (CSRF) vulnerability identified in themetechmount's TrueBooker plugin, affecting versions up to 1.0.7. CSRF vulnerabilities occur when an attacker tricks an authenticated user into submitting a forged request to a web application, causing the application to perform unwanted actions on behalf of the user without their consent. In this case, the vulnerability allows attackers to exploit the lack of proper anti-CSRF protections in TrueBooker, potentially enabling unauthorized state-changing operations such as modifying booking details or settings. The CVSS 3.1 base score of 4.3 reflects a medium severity level, indicating that while the vulnerability does not impact confidentiality or availability, it can affect the integrity of the application. The vector string (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N) shows that the attack can be performed remotely over the network without privileges but requires user interaction (e.g., clicking a malicious link). No known exploits are currently reported in the wild, and no patches have been linked yet. TrueBooker is a WordPress booking plugin commonly used by businesses to manage appointments and reservations, making it a target for attackers seeking to manipulate booking data or disrupt business operations. The vulnerability stems from insufficient validation of requests to ensure they originate from legitimate users or trusted sources, a fundamental security control missing in the affected versions.

For European organizations using TrueBooker, especially those in service industries such as hospitality, healthcare, or professional services, this vulnerability could lead to unauthorized modification of booking information, resulting in operational disruptions, customer dissatisfaction, and potential financial losses. Although the vulnerability does not directly expose sensitive data or cause denial of service, the integrity compromise could allow attackers to alter appointments, create fraudulent bookings, or manipulate scheduling, undermining trust and service reliability. Given the GDPR environment, any resulting customer impact or data mishandling could also lead to regulatory scrutiny if personal data is indirectly affected. The requirement for user interaction means phishing or social engineering campaigns could be used to exploit this vulnerability, increasing risk if employees or customers are targeted. The absence of known exploits reduces immediate risk but does not eliminate the potential for future attacks, especially as awareness of the vulnerability spreads.

European organizations should immediately assess their use of the TrueBooker plugin and verify the version in deployment. Until an official patch is released, administrators should implement the following mitigations: 1) Disable or restrict access to the TrueBooker plugin where possible, especially on publicly accessible interfaces. 2) Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious CSRF-like requests targeting TrueBooker endpoints. 3) Educate users and staff about phishing risks and the dangers of clicking unsolicited links, reducing the likelihood of successful user interaction exploitation. 4) Monitor web server logs for unusual POST requests or patterns indicative of CSRF attempts. 5) If feasible, implement additional CSRF tokens or request validation mechanisms at the application or proxy level as a temporary safeguard. 6) Plan for prompt application of vendor patches once available and maintain an update schedule for all plugins. 7) Review and tighten user session management and authentication controls to limit the impact of any forged requests.