CVE-2025-69012 is a missing authorization vulnerability identified in the Stephen Harris Event Organiser plugin, versions up to and including 3.12.8. This vulnerability stems from incorrectly configured access control security levels within the plugin, which is used to manage events on WordPress sites. The flaw allows users with limited privileges (requiring some level of authentication but not full administrative rights) to perform unauthorized actions that affect the integrity of event data, such as modifying or manipulating event details without proper authorization. The vulnerability does not impact confidentiality or availability, meaning sensitive data is not exposed, nor is the system rendered unavailable. The CVSS 3.1 base score is 4.3, reflecting a medium severity level, with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), privileges required (PR:L), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), low integrity impact (I:L), and no availability impact (A:N). No public exploits or active exploitation in the wild have been reported to date. The vulnerability was published on December 30, 2025, and assigned by Patchstack. The lack of patch links suggests that a fix may not yet be publicly available, emphasizing the need for vigilance and interim mitigation. The plugin is commonly used in event management scenarios, and unauthorized modifications could disrupt event scheduling, attendee information, or other critical event-related data, potentially causing operational disruptions or reputational damage for affected organizations.

For European organizations, the primary impact of CVE-2025-69012 lies in the potential unauthorized modification of event-related data, which can lead to misinformation, scheduling conflicts, or disruption of event operations. This can affect businesses, educational institutions, and public sector entities that rely on the Event Organiser plugin for managing conferences, meetings, or public events. Although the vulnerability does not expose sensitive data or cause denial of service, the integrity compromise can undermine trust in event information and cause logistical challenges. Organizations in sectors with high event management dependency, such as cultural institutions, universities, and corporate event planners, may experience operational inefficiencies or reputational harm if attackers exploit this flaw. The requirement for some level of privilege reduces the risk of widespread exploitation but does not eliminate insider threats or attacks leveraging compromised accounts. The absence of known exploits reduces immediate risk but does not preclude future exploitation, especially if patches are delayed.

1. Monitor for and apply security patches from Stephen Harris or plugin maintainers as soon as they become available to address the missing authorization issue. 2. Conduct a thorough review of user roles and permissions within WordPress and specifically for the Event Organiser plugin to ensure the principle of least privilege is enforced. 3. Restrict access to event management functions to trusted users only and consider implementing multi-factor authentication (MFA) for accounts with elevated privileges. 4. Implement logging and monitoring of event-related administrative actions to detect unauthorized modifications promptly. 5. If a patch is not yet available, consider temporarily disabling or limiting the use of the Event Organiser plugin or isolating it in a controlled environment to reduce exposure. 6. Educate administrators and users about the risks of privilege misuse and encourage regular audits of access controls. 7. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious activity targeting event management endpoints. 8. Maintain regular backups of event data to enable recovery in case of unauthorized changes.