CVE-2025-22351 identifies a critical SQL Injection vulnerability in the Contact Form 7 Database – CFDB7 WordPress plugin developed by penguinarts. This plugin is designed to store and manage submissions from the widely used Contact Form 7 plugin. The vulnerability stems from improper neutralization of special characters in SQL commands, which allows attackers to inject malicious SQL code. This can lead to unauthorized access to sensitive data stored in the database, modification or deletion of records, and potentially full compromise of the underlying database server. The affected versions include all releases up to and including version 1.0.0. No CVSS score has been assigned yet, and no patches or official fixes have been published as of the vulnerability disclosure date. Exploitation does not require user authentication, making it accessible to remote attackers who can submit specially crafted input through the vulnerable form. Although no active exploits have been reported in the wild, the nature of SQL Injection vulnerabilities and the plugin’s popularity make this a significant threat. The vulnerability highlights the importance of proper input validation and parameterized queries in WordPress plugins handling database operations.

The potential impact of CVE-2025-22351 is substantial for organizations using the Contact Form 7 Database – CFDB7 plugin. Successful exploitation can lead to unauthorized disclosure of sensitive form submission data, including personal and confidential information. Attackers could alter or delete database records, disrupting business operations and data integrity. In worst-case scenarios, attackers might escalate privileges or pivot to compromise the entire web server or connected systems. This can result in data breaches, regulatory compliance violations, reputational damage, and financial losses. Since the vulnerability requires no authentication and can be triggered remotely via form submissions, the attack surface is broad. Organizations with high volumes of user data collected through Contact Form 7 forms are particularly at risk. The lack of an official patch increases exposure time, emphasizing the need for immediate mitigation. Additionally, the vulnerability could be leveraged as part of multi-stage attacks targeting WordPress sites, which are common targets globally.

To mitigate CVE-2025-22351, organizations should immediately assess their use of the Contact Form 7 Database – CFDB7 plugin and disable or remove it if possible until a patch is available. Monitor official vendor channels for security updates and apply patches promptly once released. Implement web application firewalls (WAFs) with robust SQL Injection detection and prevention rules to block malicious payloads targeting the vulnerable plugin. Review and harden database permissions to limit the impact of potential exploitation, ensuring the database user has the minimum required privileges. Conduct thorough input validation and sanitization on all form inputs, ideally using parameterized queries or prepared statements if custom code interacts with the database. Regularly audit WordPress plugins for security and maintain an inventory to quickly identify vulnerable components. Additionally, monitor logs for suspicious activity related to form submissions and database queries. Educate site administrators about the risks of installing unverified plugins and encourage timely updates.