CVE-2025-46252 is a SQL Injection vulnerability classified under CWE-89, affecting the 'Message Filter for Contact Form 7' plugin developed by kofimokome. This plugin is used to filter messages submitted through the widely deployed Contact Form 7 plugin for WordPress. The vulnerability arises from improper neutralization of special elements in SQL commands, allowing an attacker to inject malicious SQL code through user-supplied input fields processed by the Message Filter plugin. The affected versions include all versions up to 1.6.3.2, with no specific version exclusions noted. Exploitation of this vulnerability could enable an attacker to manipulate backend database queries, potentially leading to unauthorized data access, data modification, or deletion. Since Contact Form 7 is a popular WordPress plugin for creating contact forms, and the Message Filter plugin extends its functionality, this vulnerability could be present on numerous WordPress sites that utilize this combination. The vulnerability does not currently have any known exploits in the wild, and no official patches or updates have been released at the time of this report. The vulnerability was published on April 22, 2025, and has been enriched with CISA data, indicating recognition by US cybersecurity authorities. The attack vector likely involves submitting specially crafted input through web forms that are processed by the vulnerable plugin, without requiring authentication or elevated privileges. This makes the vulnerability exploitable remotely by unauthenticated attackers. The absence of patches and the medium severity rating suggest that while the vulnerability is serious, exploitation may require some level of knowledge about the target environment or specific conditions to succeed. However, the potential impact on confidentiality, integrity, and availability of data stored in the backend database is significant if exploited.

For European organizations, this vulnerability poses a moderate to high risk, especially for those relying on WordPress websites with Contact Form 7 and the Message Filter plugin installed. Successful exploitation could lead to unauthorized access to sensitive customer data, including personal information submitted via contact forms, violating GDPR and other data protection regulations. Data integrity could be compromised if attackers modify or delete records, potentially disrupting business operations or damaging reputation. Availability of the website or associated services could also be affected if attackers execute destructive SQL commands. Organizations in sectors such as e-commerce, healthcare, finance, and public services, which often use WordPress for customer interaction, are particularly at risk. The vulnerability could also be leveraged as a foothold for further attacks within the network if the compromised system has broader access. Given the widespread use of WordPress in Europe, the impact could be extensive if not mitigated promptly.

1. Immediate audit of all WordPress sites to identify installations of Contact Form 7 and the Message Filter plugin, specifically versions up to 1.6.3.2. 2. Disable or remove the Message Filter plugin if it is not essential to reduce attack surface. 3. Implement web application firewalls (WAF) with rules specifically designed to detect and block SQL injection attempts targeting form inputs. 4. Employ input validation and sanitization at the application level, ensuring that all user inputs are properly escaped before being used in SQL queries. 5. Monitor web server and application logs for unusual or suspicious input patterns indicative of SQL injection attempts. 6. Engage with the plugin vendor or community to track the release of patches or updates addressing this vulnerability and apply them promptly once available. 7. Conduct penetration testing focused on injection vulnerabilities to verify the effectiveness of mitigations. 8. Educate web administrators and developers about secure coding practices and the risks associated with third-party plugins. 9. Consider isolating the WordPress environment or limiting database user privileges to minimize potential damage from exploitation.