CVE-2025-10683 identifies a SQL Injection vulnerability in the Easy Email Subscription plugin for WordPress, developed by yudiz. The vulnerability exists in all versions up to and including 1.3 due to insufficient escaping and lack of prepared statements when processing the 'uid' parameter in SQL queries. This improper neutralization of special elements (CWE-89) allows an authenticated user with Administrator or higher privileges to append malicious SQL code to existing queries. The attack vector is network-based with low attack complexity but requires high privileges (PR:H) and no user interaction (UI:N). The vulnerability impacts confidentiality by enabling extraction of sensitive data from the database but does not affect integrity or availability. The CVSS 3.1 base score is 4.9 (medium severity), reflecting the limited scope of exploitation due to privilege requirements. No known exploits have been reported in the wild, and no official patches have been published as of now. The vulnerability was reserved in September 2025 and published in November 2025. Organizations using this plugin should be aware of the risk, especially if multiple administrators have access, as the vulnerability could be exploited internally or by attackers who have compromised admin credentials.

For European organizations, the primary impact is unauthorized disclosure of sensitive information stored in the WordPress database, which may include subscriber data, email addresses, or other confidential content managed by the plugin. Since exploitation requires administrator-level access, the threat mainly arises from insider threats or attackers who have already gained elevated privileges. Data confidentiality breaches can lead to regulatory non-compliance under GDPR, resulting in legal penalties and reputational damage. The vulnerability does not directly affect data integrity or availability, so operational disruption is unlikely. However, the exposure of subscriber data could facilitate further phishing or social engineering attacks targeting European users. Organizations relying on this plugin for email subscription management should consider the sensitivity of the data involved and the potential consequences of data leakage. The lack of known exploits reduces immediate risk but does not eliminate the threat, especially in environments with multiple administrators or weak internal controls.

1. Immediately audit and restrict administrator-level access to only trusted personnel to reduce the risk of exploitation. 2. Implement strict role-based access controls and monitor administrator activities for suspicious behavior. 3. Employ Web Application Firewalls (WAFs) with custom rules to detect and block anomalous SQL query patterns related to the 'uid' parameter. 4. Regularly review and sanitize all user inputs, especially those processed by plugins, and consider disabling or replacing the Easy Email Subscription plugin until a patch is available. 5. Monitor database logs for unusual query activity that may indicate attempted SQL injection. 6. Keep WordPress core and all plugins updated; apply any security patches from yudiz promptly once released. 7. Conduct internal security training to raise awareness about the risks of privilege misuse and SQL injection. 8. Consider implementing database-level protections such as least privilege for the WordPress database user to limit data exposure in case of injection. 9. Backup data regularly and ensure backups are secure to enable recovery if exploitation leads to data compromise. 10. Engage in threat intelligence sharing with industry peers to stay informed about emerging exploits related to this vulnerability.