CVE-2025-12197 identifies a blind SQL Injection vulnerability in the popular WordPress plugin The Events Calendar, specifically in versions 6.15.1.1 through 6.15.9. The vulnerability stems from insufficient escaping and lack of proper parameterized queries on the 's' parameter, which is user-supplied input typically used for search functionality. An unauthenticated attacker can exploit this flaw by crafting malicious input that appends additional SQL commands to the existing query executed by the plugin. This allows the attacker to extract sensitive information from the backend database, such as user data, configuration details, or other stored content, without requiring any authentication or user interaction. The vulnerability is classified under CWE-89, indicating improper neutralization of special elements in SQL commands. The CVSS v3.1 score is 7.5, reflecting a high severity due to network attack vector, no privileges required, and no user interaction needed. The impact is primarily on confidentiality, as the injection allows data leakage but does not permit modification or denial of service. No patches are currently linked, and no known exploits have been reported in the wild as of the publication date (November 5, 2025). The plugin is widely used for event management on WordPress sites, making this vulnerability relevant to many organizations relying on this ecosystem.

For European organizations, the impact of this vulnerability can be significant, especially for those operating public-facing websites that use The Events Calendar plugin. Successful exploitation can lead to unauthorized disclosure of sensitive information stored in the WordPress database, including user credentials, personal data, and business-critical information. This can result in data breaches, regulatory non-compliance (e.g., GDPR violations), reputational damage, and potential financial penalties. Since the attack requires no authentication and no user interaction, it can be automated and scaled, increasing the risk of widespread exploitation. Organizations in sectors such as government, healthcare, education, and e-commerce, which often use WordPress for event management, are particularly at risk. The confidentiality breach could also facilitate further attacks, such as phishing or lateral movement within compromised networks.

1. Immediate mitigation should include restricting access to the vulnerable 's' parameter endpoint by implementing web application firewall (WAF) rules that detect and block SQL injection patterns targeting The Events Calendar plugin. 2. Monitor web server and database logs for unusual query patterns or spikes in failed queries that could indicate attempted exploitation. 3. Disable or limit the use of the search functionality in The Events Calendar plugin if feasible until a patch is available. 4. Apply principle of least privilege to the WordPress database user, ensuring it has only the necessary permissions to reduce potential data exposure. 5. Regularly update the plugin to the latest version once the vendor releases a patch addressing this vulnerability. 6. Conduct security assessments and penetration testing focused on SQL injection vectors in WordPress environments. 7. Educate site administrators on the risks and signs of SQL injection attacks to improve detection and response.