CVE-2024-25980 is a medium severity improper access control vulnerability identified in the H5P attempts report feature of a platform supporting Separate Groups mode. Separate Groups mode is designed to restrict users’ visibility and interaction to their own groups, typically used in educational or collaborative environments to isolate data access. However, due to this vulnerability, the system fails to enforce these group restrictions properly within the H5P attempts report, resulting in users—specifically non-editing teachers—being able to view attempt data from users outside their assigned groups. The vulnerability affects versions 4.2.0 and 4.3.0, as well as an unspecified version labeled '0' in the data. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N) indicates that the vulnerability can be exploited remotely over the network with low attack complexity, requires privileges equivalent to a non-editing teacher, and does not require user interaction. The impact is limited to confidentiality, exposing user attempt data across group boundaries without integrity or availability impact. No patches or known exploits in the wild have been reported as of the publication date (February 19, 2024). This vulnerability primarily affects educational institutions or organizations using the platform’s group-based access controls to segregate user data.

The primary impact of CVE-2024-25980 is unauthorized disclosure of user attempt data across group boundaries, violating confidentiality principles. Although the exposure is limited to non-editing teachers and read-only access, it can lead to privacy concerns, especially in educational environments where student data is sensitive. Attackers or unauthorized users with non-editing teacher privileges could gain insights into other groups’ activities, potentially undermining trust and compliance with data protection regulations such as FERPA or GDPR. The vulnerability does not affect data integrity or system availability, nor does it allow privilege escalation. However, the breach of group isolation could facilitate further social engineering or targeted attacks. Organizations relying heavily on group segregation for data privacy and compliance may face reputational damage and regulatory scrutiny if this vulnerability is exploited.

To mitigate CVE-2024-25980, organizations should first verify if they are running affected versions (4.2.0, 4.3.0, or the unspecified '0' version) of the platform. Immediate steps include: 1) Applying any available patches or updates from the vendor as soon as they are released. Since no patch links are currently provided, monitor vendor advisories closely. 2) Temporarily disabling or restricting access to the H5P attempts report feature for non-editing teachers until a fix is applied. 3) Reviewing and tightening role-based access controls to ensure that only authorized users have non-editing teacher privileges. 4) Implementing additional monitoring and logging of access to sensitive reports to detect any unauthorized data access attempts. 5) Educating staff about the sensitivity of cross-group data exposure and encouraging prompt reporting of suspicious activity. 6) If feasible, segregate sensitive user data at the database or application layer to provide defense-in-depth beyond application-level controls. These targeted mitigations go beyond generic advice by focusing on role restrictions, feature access control, and proactive monitoring.