CVE-2025-39482 is a security vulnerability classified under CWE-862 (Missing Authorization) affecting the imithemes Eventer product up to version 3.9.6. This vulnerability arises due to incorrectly configured access control mechanisms within the Eventer application, allowing users with limited privileges (requiring at least some level of authentication) to perform actions or access resources they should not be authorized to. The vulnerability does not require user interaction and can be exploited remotely over the network (AV:N), with low attack complexity (AC:L). The CVSS 3.1 base score is 4.3, indicating a medium severity level. The impact primarily affects confidentiality, with no direct impact on integrity or availability. Specifically, an attacker with some level of privileges can gain unauthorized access to certain data or functionalities that should be restricted, potentially leading to information disclosure. No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability is relevant to organizations using the Eventer plugin from imithemes, which is typically a WordPress event management plugin, suggesting the affected systems are web servers running WordPress with this plugin installed. The missing authorization flaw could allow privilege escalation or unauthorized data access within the context of the web application.

For European organizations, the impact of CVE-2025-39482 depends on the extent to which they use the imithemes Eventer plugin in their WordPress environments. Organizations relying on Eventer for event management on public-facing or internal websites may face confidentiality risks, as unauthorized users with some level of access could view sensitive event data or user information. While the vulnerability does not affect integrity or availability, unauthorized data exposure could lead to privacy violations, reputational damage, and potential regulatory non-compliance under GDPR, especially if personal data is involved. The medium severity score suggests that while the risk is not critical, it is significant enough to warrant prompt attention. Since exploitation requires at least some privileges, attackers might need to compromise a low-privilege account first, which could be feasible through phishing or credential stuffing attacks. The lack of known exploits in the wild provides a window for mitigation before active exploitation occurs.

European organizations should take the following specific steps to mitigate this vulnerability: 1) Immediately audit WordPress installations to identify the presence and version of the imithemes Eventer plugin. 2) Restrict access to Eventer functionalities by reviewing and tightening user roles and permissions, ensuring that only trusted users have access to sensitive features. 3) Monitor authentication logs for unusual activity that could indicate attempts to exploit access control weaknesses. 4) Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting Eventer endpoints. 5) Since no official patch links are available yet, organizations should engage with the vendor or community to obtain updates or workarounds. 6) Consider temporarily disabling or removing the Eventer plugin if it is not critical to operations until a patch is released. 7) Educate users on strong credential hygiene to reduce the risk of initial account compromise. 8) Regularly update WordPress core and plugins to minimize exposure to known vulnerabilities.