CVE-2025-13000 identifies a critical SQL Injection vulnerability in the db-access WordPress plugin, affecting all versions up to and including 0.8.7. The root cause is the absence of authorization checks in an AJAX action handler, which allows any authenticated user, including those with minimal privileges such as subscribers, to inject malicious SQL queries. This vulnerability leverages CWE-89, indicating improper neutralization of special elements in SQL commands. Exploiting this flaw could enable attackers to read, modify, or delete sensitive data within the WordPress database, potentially leading to data breaches, privilege escalation, or site defacement. The lack of authorization means that even users with limited access can exploit the vulnerability, increasing the attack surface significantly. Although no public exploits have been reported yet, the vulnerability is publicly disclosed and documented by WPScan and the CVE database. The absence of a CVSS score necessitates a severity assessment based on impact and exploitability factors. The vulnerability affects WordPress sites using the db-access plugin, which is commonly used for database interactions within WordPress environments. Given WordPress's widespread use in Europe, this vulnerability poses a substantial risk to organizations relying on this plugin for database access and management.

For European organizations, this vulnerability could lead to unauthorized access to sensitive customer data, intellectual property, or internal business information stored in WordPress databases. Attackers exploiting this flaw could manipulate or exfiltrate data, potentially causing reputational damage, regulatory penalties under GDPR, and operational disruptions. Since the vulnerability can be exploited by low-privilege users, organizations with open registration or subscriber-level accounts are particularly vulnerable. This increases the risk of insider threats or compromised user accounts being leveraged for attacks. The impact extends to e-commerce platforms, content management systems, and any WordPress-based service relying on the db-access plugin. The potential for data integrity compromise and unauthorized data disclosure makes this a significant threat to confidentiality and integrity. Availability impacts are less direct but could occur if attackers corrupt database contents or execute denial-of-service conditions via crafted SQL queries.

Immediate mitigation should include restricting user registrations or limiting subscriber privileges to trusted users only. Organizations should monitor and audit user activities for suspicious behavior related to database access. Deploying a Web Application Firewall (WAF) with SQL injection detection and prevention capabilities can help block exploitation attempts. Since no official patch is currently available, administrators should consider disabling or removing the db-access plugin temporarily if feasible. Regular backups of WordPress databases should be maintained to enable recovery in case of compromise. Once a patch is released, prompt application is critical. Additionally, implementing the principle of least privilege for database users and hardening WordPress installations by disabling unnecessary AJAX actions can reduce attack surfaces. Security teams should also conduct vulnerability scanning and penetration testing focused on SQL injection vectors within WordPress environments.