The vulnerability identified as CVE-2025-13312 affects the dripadmin CRM Memberships plugin for WordPress, specifically all versions up to and including 2.5. The root cause is a missing authorization check (CWE-862) in the function 'ntzcrm_add_new_tag', which is responsible for creating new membership tags within the CRM system. Due to the absence of capability verification, unauthenticated attackers can remotely invoke this function to create arbitrary membership tags and modify CRM configuration settings that should be restricted to administrative users only. This flaw allows attackers to alter the integrity of the CRM data and configuration without requiring any credentials or user interaction. The vulnerability has a CVSS v3.1 base score of 5.3, indicating medium severity, with the vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N, meaning it is remotely exploitable over the network with low attack complexity, no privileges, and no user interaction, impacting integrity but not confidentiality or availability. No known exploits have been reported in the wild, and no official patches have been released at the time of publication. The vulnerability could be leveraged to manipulate membership tags, potentially leading to unauthorized access escalation or disruption of CRM workflows. Since WordPress is widely used in Europe and dripadmin CRM Memberships is a niche but growing plugin, the risk is notable for organizations relying on this plugin for customer relationship management.

For European organizations, this vulnerability poses a risk primarily to the integrity of CRM data and configurations. Unauthorized creation or modification of membership tags could lead to incorrect membership categorizations, misrouted communications, or unauthorized access to CRM features if tag-based access controls are in place. While it does not directly expose sensitive data or cause service outages, the integrity compromise can facilitate further attacks such as privilege escalation or social engineering by manipulating CRM records. Organizations in sectors relying heavily on CRM data accuracy, such as retail, finance, and customer service, may experience operational disruptions or reputational damage. The ease of exploitation without authentication increases the threat level, especially for publicly accessible WordPress sites. Given the lack of patches, organizations face a window of exposure until a fix is available, necessitating interim mitigations. The impact is mitigated somewhat by the plugin's market penetration, which is not as widespread as core WordPress components but still significant in certain markets.

1. Immediately restrict access to the vulnerable 'ntzcrm_add_new_tag' function by implementing web application firewall (WAF) rules that block unauthorized POST requests targeting this function or related endpoints. 2. Monitor web server and application logs for unusual or repeated attempts to create membership tags without authentication, and set up alerts for suspicious activity. 3. Disable or uninstall the dripadmin CRM Memberships plugin if it is not essential to business operations until a vendor patch is released. 4. If plugin use is critical, consider applying temporary code-level patches by adding explicit capability checks in the 'ntzcrm_add_new_tag' function to ensure only authorized users can invoke it. 5. Regularly check for updates from the vendor and apply official patches promptly once available. 6. Educate site administrators about the risk and encourage strong administrative access controls and monitoring. 7. Conduct a thorough audit of membership tags and CRM configurations to detect and remediate any unauthorized changes made prior to mitigation.