CVE-2025-69358 identifies a missing authorization vulnerability in the Metagauss EventPrime plugin, specifically in the eventprime-event-calendar-management component. The root cause is incorrectly configured access control security levels, which fail to properly restrict user permissions. This allows unauthorized users to exploit the plugin to perform actions that should require elevated privileges, such as modifying event details or accessing administrative functions. The vulnerability affects all versions up to 4.2.6.0, with no version exempted. The lack of a CVSS score indicates that the vulnerability has not yet been fully assessed or scored by standard frameworks. No patches or official fixes have been published as of the vulnerability disclosure date (March 25, 2026). There are no known exploits in the wild, but the nature of missing authorization issues typically allows attackers to bypass intended security controls, potentially leading to unauthorized data modification or disclosure. EventPrime is widely used in WordPress environments to manage event calendars, making this vulnerability relevant to organizations relying on this plugin for event scheduling and management. The vulnerability's exploitation requires no user interaction but depends on the attacker’s ability to access the affected plugin interface, which may be publicly accessible or restricted depending on the deployment. The absence of authentication requirements is not explicitly stated, but missing authorization generally implies that authenticated users with limited privileges or unauthenticated users might exploit the flaw.

The potential impact of CVE-2025-69358 is significant for organizations using the EventPrime plugin for event management. Unauthorized access to event calendar management functions can lead to data integrity issues, such as unauthorized creation, modification, or deletion of event information. This can disrupt organizational operations, cause misinformation, or damage reputations if event details are manipulated maliciously. Confidentiality risks may arise if sensitive event data is exposed or accessed without authorization. Availability could also be affected if attackers disrupt event scheduling or management functionalities. The impact is heightened in environments where event data is critical for business continuity, public communications, or regulatory compliance. Since no patches are currently available, organizations remain exposed until mitigations or updates are applied. The lack of known exploits reduces immediate risk but does not eliminate the threat, as attackers may develop exploits once the vulnerability details are public. The scope includes all installations of EventPrime up to version 4.2.6.0, which could be widespread given the plugin's popularity in WordPress ecosystems.

To mitigate CVE-2025-69358, organizations should first conduct an immediate audit of user roles and permissions within EventPrime to ensure that only trusted users have access to event management functions. Restrict access to the plugin’s administrative interfaces using network-level controls such as IP whitelisting or VPN access where feasible. Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting EventPrime endpoints. Monitor logs for unusual activity related to event creation, modification, or deletion. Until an official patch is released, consider disabling or uninstalling the EventPrime plugin if event calendar functionality is not critical. If the plugin is essential, isolate the WordPress instance hosting EventPrime from public exposure or use strong authentication mechanisms to limit access. Stay informed about vendor updates and apply patches promptly once available. Additionally, review and harden WordPress security configurations overall, including plugin updates and principle of least privilege for all users.