CVE-2025-11204 is a vulnerability classified under CWE-89 (SQL Injection) found in the WordPress plugin RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login. The flaw exists in all versions up to and including 6.0.6.2, caused by insufficient escaping and lack of prepared statements when handling user-supplied parameters in SQL queries. Authenticated attackers with administrator privileges can append arbitrary SQL commands to existing queries, enabling extraction or manipulation of sensitive database information. This compromises confidentiality, integrity, and availability of the backend database. Furthermore, an unauthenticated attacker can exploit a reflected Cross-Site Scripting (XSS) vulnerability by injecting malicious scripts via the user-agent HTTP header during form submission, which can be leveraged to execute arbitrary scripts in victims’ browsers. The CVSS 3.1 base score is 7.2, reflecting high severity due to network attack vector, low attack complexity, required privileges (high), no user interaction, and high impact on confidentiality, integrity, and availability. No patches or known exploits are currently available, but the vulnerability is publicly disclosed and should be addressed promptly. The plugin is widely used for managing user registrations and payments on WordPress sites, making this a critical risk for websites handling sensitive user data or financial transactions.

For European organizations, this vulnerability poses a significant risk, especially for those relying on WordPress sites with RegistrationMagic for user registration, payment processing, or login management. Exploitation could lead to unauthorized access to sensitive personal data, payment information, and user credentials, violating GDPR and other data protection regulations. The integrity of databases could be compromised, leading to data tampering or deletion, which may disrupt business operations and damage reputation. The reflected XSS vector could facilitate phishing or session hijacking attacks against site administrators or users. Given the high prevalence of WordPress in Europe, including government, education, and commercial sectors, the impact could be widespread. Organizations processing EU citizen data must prioritize remediation to avoid regulatory penalties and operational disruptions.

Immediate mitigation steps include restricting administrator access to trusted personnel and monitoring for unusual database queries or web traffic patterns indicative of exploitation attempts. Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection payloads and suspicious user-agent strings. Until an official patch is released, implement manual input validation and sanitization on all user-supplied parameters within the plugin’s code, replacing dynamic SQL queries with parameterized prepared statements where possible. Disable or limit the use of the vulnerable plugin if feasible, or replace it with a secure alternative. Conduct thorough security audits and penetration testing on WordPress installations to identify and remediate similar injection points. Maintain up-to-date backups and incident response plans to recover quickly from potential breaches.