CVE-2025-64251 is a Missing Authorization vulnerability identified in azzaroco Ultimate Learning Pro, a popular e-learning management system, affecting versions up to and including 3.9.3. The vulnerability arises from incorrectly configured access control security levels, allowing authenticated users with high privileges to bypass authorization checks and access sensitive information they should not be entitled to view. The CVSS v3.1 base score is 4.9 (medium), reflecting that the attack vector is network-based (AV:N), with low attack complexity (AC:L), but requires privileges (PR:H) and no user interaction (UI:N). The scope is unchanged (S:U), and the impact is limited to confidentiality (C:H), with no impact on integrity (I:N) or availability (A:N). This means that while the vulnerability does not allow modification or disruption of services, it can lead to unauthorized disclosure of sensitive data. No public exploits have been reported yet, but the vulnerability is published and should be considered in risk assessments. The root cause is an access control misconfiguration, which is a common security weakness that can be exploited by insiders or compromised accounts with elevated privileges. The lack of patches or mitigation links indicates that users must proactively audit and harden their access control policies until official fixes are released.

For European organizations using azzaroco Ultimate Learning Pro, this vulnerability poses a risk of unauthorized data disclosure, potentially exposing sensitive educational content, user data, or proprietary training materials. Confidentiality breaches could lead to privacy violations under GDPR, reputational damage, and potential regulatory penalties. Since the vulnerability requires high privilege authentication, the risk is heightened if privileged accounts are compromised or misused internally. The absence of integrity or availability impact limits the threat to data leakage rather than system disruption or data tampering. However, educational institutions, corporate training departments, and government agencies relying on this platform could face operational and compliance challenges if sensitive information is exposed. The medium severity rating suggests that while the threat is not critical, it warrants timely remediation to prevent escalation or exploitation in targeted attacks.

European organizations should immediately audit their Ultimate Learning Pro deployments to identify and restrict high privilege accounts to only trusted personnel. Implement strict role-based access controls (RBAC) and verify that authorization checks are correctly enforced for all sensitive operations. Monitor logs for unusual access patterns indicative of privilege misuse. Until official patches are released, consider applying compensating controls such as network segmentation, multi-factor authentication for privileged users, and limiting network exposure of the application. Engage with azzaroco support or vendor channels to obtain updates on patch availability. Additionally, conduct regular security assessments and penetration testing focused on access control mechanisms within the platform. Document and enforce policies for privileged account management and incident response to quickly detect and respond to potential exploitation attempts.