CVE-2025-9085 is a SQL Injection vulnerability identified in the wpeverest User Registration & Membership plugin for WordPress, specifically in version 4.3.0 and potentially all versions. The root cause is the improper neutralization of special characters in the 's' parameter used in SQL commands, which is insufficiently escaped and prepared before query execution. This flaw allows an attacker with administrator-level privileges to append malicious SQL code to existing queries, enabling unauthorized extraction of sensitive information from the backend database. The vulnerability does not require user interaction but does require authenticated access with high privileges, limiting the attack surface to trusted users with administrative rights. The CVSS 3.1 score of 4.9 reflects a medium severity rating, with a network attack vector, low attack complexity, and no user interaction needed. The vulnerability affects confidentiality but not integrity or availability. No public exploits have been reported yet, but the risk remains significant for organizations relying on this plugin for user registration, membership management, and content restriction on WordPress sites. The lack of available patches at the time of disclosure necessitates immediate mitigation steps to reduce risk.

For European organizations, this vulnerability poses a risk primarily to the confidentiality of sensitive user and membership data stored in WordPress databases. Attackers with administrator access could extract personal information, membership details, or other confidential data, potentially leading to data breaches and compliance violations under GDPR. Although the vulnerability does not allow data modification or service disruption, the exposure of sensitive data can damage organizational reputation and lead to regulatory penalties. Organizations relying heavily on WordPress for membership and user management, especially in sectors like education, e-commerce, and membership-based services, are at higher risk. The requirement for administrator privileges limits the threat to insider threats or compromised administrator accounts, emphasizing the importance of strict access controls and monitoring. The absence of known exploits reduces immediate risk but does not eliminate the potential for future attacks once exploit code becomes available.

1. Immediately restrict administrator-level access to trusted personnel only and enforce strong authentication mechanisms such as multi-factor authentication (MFA). 2. Monitor WordPress logs and database query logs for unusual or unexpected SQL query patterns that may indicate attempted exploitation. 3. Apply any available patches or updates from the wpeverest plugin vendor as soon as they are released. 4. If patches are not yet available, consider temporarily disabling the plugin or limiting its functionality to reduce exposure. 5. Conduct regular security audits of WordPress installations, focusing on plugin vulnerabilities and administrator account activities. 6. Implement web application firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the 's' parameter. 7. Educate administrators on the risks of privilege misuse and the importance of secure credential management. 8. Backup WordPress databases regularly and ensure backups are securely stored to enable recovery in case of compromise.