CVE-2025-49870 is a high-severity SQL Injection vulnerability affecting the Cozmoslabs Paid Member Subscriptions plugin, specifically versions up to 2.15.1. The vulnerability arises from improper neutralization of special elements used in SQL commands, classified under CWE-89. This flaw allows an unauthenticated attacker to inject malicious SQL code remotely over the network (AV:N), but exploitation requires high attack complexity (AC:H), no privileges (PR:N), and no user interaction (UI:N). The vulnerability impacts confidentiality with a high impact (C:H), but does not affect integrity (I:N) and only causes a low impact on availability (A:L). The scope is changed (S:C), indicating that exploitation could affect resources beyond the vulnerable component, potentially impacting the underlying database or other integrated systems. The plugin is commonly used in WordPress environments to manage paid memberships, subscriptions, and access control. An attacker exploiting this vulnerability could extract sensitive data such as user credentials, payment information, or subscription details from the backend database. Although no known exploits are currently reported in the wild, the presence of a high CVSS score (7.5) and the nature of SQL Injection vulnerabilities make this a significant risk, especially for websites relying on this plugin for membership management. The lack of available patches at the time of publication increases the urgency for mitigation and monitoring. Organizations using this plugin should be aware that the vulnerability can be exploited remotely without authentication, but the complexity of the attack is high, possibly requiring specific crafted payloads or conditions. The vulnerability's impact on confidentiality is critical, as data leakage could lead to privacy violations and regulatory non-compliance.

For European organizations, the impact of CVE-2025-49870 is considerable due to the potential exposure of sensitive personal data protected under GDPR, including membership details and payment information. A successful SQL Injection attack could lead to unauthorized data disclosure, undermining customer trust and resulting in legal and financial penalties. The compromise of subscription data could disrupt business operations, cause reputational damage, and lead to financial losses. Given the plugin's role in managing paid memberships, exploitation could also enable attackers to manipulate subscription statuses or access restricted content, affecting revenue streams. The high confidentiality impact combined with the changed scope means that data beyond the plugin itself could be compromised, potentially affecting integrated systems or databases. European organizations must consider the regulatory implications of data breaches and the operational risks associated with this vulnerability.

1. Immediate mitigation should include disabling or restricting access to the Paid Member Subscriptions plugin until a patch is available. 2. Implement Web Application Firewall (WAF) rules specifically designed to detect and block SQL Injection attempts targeting the plugin's known endpoints and parameters. 3. Conduct thorough input validation and sanitization on all user inputs related to membership and subscription management, applying strict whitelisting where possible. 4. Monitor application logs and database queries for unusual or suspicious activity indicative of SQL Injection attempts. 5. Employ database user accounts with the least privileges necessary for the plugin's operation to limit the impact of any successful injection. 6. Regularly update the plugin as soon as the vendor releases a security patch addressing this vulnerability. 7. Perform security audits and penetration testing focused on SQL Injection vectors within the membership management system. 8. Educate development and security teams about the risks of SQL Injection and secure coding practices to prevent similar issues in customizations or integrations.