The vulnerability identified as CVE-2025-13313 affects the dripadmin CRM Memberships plugin for WordPress, versions up to and including 2.5. It is a missing authorization vulnerability (CWE-862) that allows unauthenticated attackers to escalate privileges by resetting arbitrary user passwords. The root cause is the lack of proper authentication and authorization checks on the AJAX action ntzcrm_changepassword, which handles password reset requests. Because this endpoint does not verify the identity or permissions of the requester, an attacker can invoke it to change any user's password if they know or can enumerate the user's email address. Compounding this issue, the plugin exposes another AJAX endpoint, ntzcrm_get_users, without authentication, enabling attackers to retrieve lists of subscriber email addresses. This facilitates targeted attacks by providing the necessary identifiers to exploit the password reset flaw. The vulnerability has a CVSS 3.1 base score of 9.8, reflecting its critical nature: it can be exploited remotely over the network without any privileges or user interaction, and it impacts confidentiality, integrity, and availability fully. Although no exploits are currently reported in the wild, the vulnerability's characteristics make it highly exploitable and dangerous. The plugin is typically used in WordPress environments managing customer relationship data and memberships, making affected sites prime targets for account takeover, data theft, and further lateral attacks.

For European organizations, this vulnerability poses a severe risk to the security and privacy of user data managed through WordPress sites using the dripadmin CRM Memberships plugin. Successful exploitation can lead to unauthorized access to user accounts, including administrative or privileged accounts, resulting in potential data breaches, loss of customer trust, and regulatory non-compliance under GDPR. The ability to enumerate subscriber emails also increases the risk of targeted phishing or social engineering attacks. Organizations relying on this plugin for membership management or customer relationship functions may face service disruption, data integrity issues, and reputational damage. Given the critical CVSS score and the ease of exploitation, attackers could leverage this vulnerability to pivot within networks, escalate privileges, and exfiltrate sensitive data. This is particularly concerning for sectors with stringent data protection requirements such as finance, healthcare, and public services across Europe.

Immediate mitigation involves updating the dripadmin CRM Memberships plugin to a patched version once released by the vendor. Until a patch is available, organizations should implement compensating controls: restrict access to the affected AJAX endpoints via web application firewalls (WAF) or server-level rules to block unauthenticated requests to ntzcrm_changepassword and ntzcrm_get_users. Monitoring and logging of access to these endpoints should be enhanced to detect suspicious activity. Additionally, organizations should enforce strong password policies and consider multi-factor authentication (MFA) for user accounts to reduce the impact of compromised credentials. Regularly audit user accounts for unauthorized changes and educate users about phishing risks. Network segmentation and limiting administrative access to WordPress backend systems can also reduce the attack surface. Finally, organizations should prepare incident response plans to quickly address potential exploitation.