CVE-2025-64212 identifies a missing authorization vulnerability in the StylemixThemes MasterStudy LMS Pro plugin for WordPress, affecting versions prior to 4.7.16. This vulnerability arises from incorrectly configured access control mechanisms that fail to properly verify user privileges before granting access to sensitive functions or data. An attacker with limited privileges (PR:L) can exploit this flaw remotely (AV:N) without requiring user interaction (UI:N), enabling unauthorized access to information or modification of data within the LMS environment. The vulnerability impacts confidentiality and integrity but does not affect availability. The CVSS 3.1 base score of 5.4 reflects these characteristics. MasterStudy LMS Pro is widely used in educational institutions and corporate training environments to manage courses, users, and learning content. Exploiting this vulnerability could allow an attacker to access restricted course materials, user data, or administrative functions, potentially leading to data leakage or unauthorized content manipulation. No public exploits have been reported yet, but the vulnerability is publicly disclosed and should be addressed promptly. The lack of a patch link suggests that a fix may be forthcoming or available through vendor channels. Organizations relying on this LMS should audit their access control policies and monitor for unusual privilege escalations or access patterns.

For European organizations, this vulnerability poses a risk to the confidentiality and integrity of learning management systems that handle sensitive educational content and personal data of students and staff. Unauthorized access could lead to exposure of personal identifiable information (PII), intellectual property, or internal training materials. This could result in reputational damage, regulatory non-compliance (e.g., GDPR violations), and potential disruption of educational services. Since the vulnerability does not affect availability, direct service outages are unlikely, but data integrity issues could undermine trust in the LMS platform. The medium severity rating indicates moderate risk, but the widespread use of MasterStudy LMS Pro in European educational institutions and corporate training sectors increases the potential impact. Attackers exploiting this flaw could gain footholds for further lateral movement or data exfiltration within affected organizations.

1. Apply the official patch or update to MasterStudy LMS Pro version 4.7.16 or later as soon as it becomes available from StylemixThemes. 2. Until patched, restrict LMS access to trusted users and networks, employing network segmentation and VPNs where possible. 3. Conduct a thorough review of access control configurations within the LMS to ensure proper role-based permissions are enforced. 4. Implement enhanced monitoring and alerting for unusual access patterns, privilege escalations, or unauthorized data access attempts within the LMS environment. 5. Educate LMS administrators on the importance of least privilege principles and regularly audit user roles and permissions. 6. Consider deploying web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting LMS authorization endpoints. 7. Maintain regular backups of LMS data to enable recovery in case of data integrity compromise. 8. Coordinate with the vendor for timely vulnerability disclosures and patch management updates.