CVE-2025-64212 is a vulnerability identified in the MasterStudy LMS Pro plugin developed by StylemixThemes, affecting all versions prior to 4.7.16. The core issue is a missing authorization control, meaning that certain functions or data within the LMS can be accessed by users who should not have the necessary permissions. This arises from incorrectly configured access control security levels, which fail to properly verify whether a user is authorized to perform specific actions or view certain information. The vulnerability is exploitable remotely over the network without requiring user interaction, but it does require the attacker to have some level of privileges (PR:L in CVSS), indicating that the attacker must be an authenticated user with limited rights. The impact primarily affects confidentiality and integrity, as unauthorized users could potentially view or modify data they should not access, but it does not affect system availability. No known exploits have been reported in the wild, and no official patches were linked at the time of publication, though the vendor presumably will release updates to address the issue. The CVSS vector indicates low attack complexity and no user interaction needed, which increases the risk of exploitation once a suitable attack method is developed. This vulnerability is significant for organizations relying on MasterStudy LMS Pro for e-learning and training management, as unauthorized access could lead to data leakage or manipulation of learning content and user records.

For European organizations, the impact of CVE-2025-64212 includes potential unauthorized access to sensitive educational data, user information, and course content within MasterStudy LMS Pro environments. This could lead to confidentiality breaches, such as exposure of personal data of students and staff, and integrity issues, including unauthorized modification of course materials or grades. While availability is not directly impacted, the loss of trust and compliance risks under GDPR due to data exposure could have significant legal and reputational consequences. Educational institutions, corporate training departments, and e-learning providers using this LMS are particularly at risk. The medium severity rating reflects that while the vulnerability does not allow full system compromise or denial of service, the unauthorized access could facilitate further attacks or data misuse. European organizations must consider the sensitivity of educational data and the regulatory environment, which mandates strict data protection and access controls.

1. Monitor StylemixThemes official channels for patches addressing CVE-2025-64212 and apply updates to MasterStudy LMS Pro promptly once available. 2. Conduct an immediate audit of user roles and permissions within the LMS to ensure the principle of least privilege is enforced, minimizing the number of users with elevated rights. 3. Implement additional access control mechanisms such as web application firewalls (WAFs) with custom rules to detect and block unauthorized access attempts targeting LMS endpoints. 4. Enable detailed logging and monitoring of LMS access and administrative actions to detect suspicious behavior early. 5. If patching is delayed, consider temporarily restricting access to the LMS administration interfaces to trusted IP addresses or VPN users only. 6. Educate LMS administrators about the vulnerability and encourage vigilance for unusual activity. 7. Review and harden the LMS configuration, disabling any unnecessary features or endpoints that could be exploited. 8. Integrate the LMS with centralized identity and access management (IAM) solutions to strengthen authentication and authorization controls.