CVE-2026-2694 is an improper authorization vulnerability (CWE-285) in the The Events Calendar WordPress plugin by stellarwp. The issue arises from insufficient capability checks in the 'can_edit' and 'can_delete' functions, allowing authenticated users with Contributor-level privileges or above to update or trash events, organizers, and venues through the REST API. This affects all versions up to and including 6.15.16. The vulnerability has a CVSS 3.1 base score of 5.4 (medium severity), with network attack vector, low attack complexity, and no user interaction required. The vulnerability can result in unauthorized modification and loss of data. No patch or official fix information is currently available.

Exploitation allows authenticated users with Contributor-level access or higher to modify or delete event-related data via the REST API without proper authorization. This can lead to unauthorized data changes and potential data loss within the plugin's managed content. There is no indication of confidentiality impact. Availability impact is rated as low but present due to possible data deletion.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit Contributor-level access to trusted users only and monitor REST API usage for suspicious activity related to event, organizer, and venue modifications.