CVE-2026-54006

Open WebUI prior to version 0.9.6 is vulnerable to an IDOR in the calendar events update endpoint. The vulnerability arises because POST /api/v1/calendars/events/{event_id}/update validates write access to the source calendar but does not validate the destination calendar_id in the request body, ...

CVE-2026-12111 Appointment Booking Calendar <= 1.4.01 - Authenticated (Contributor+) Sensitive Information Exposure via 'id' Parameter

The Appointment Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 1.4.01. This is due to insufficient authorization and missing per-calendar ownership checks in the cpabcappointmentscalendarload2 function, which is reachable vi...

PT-2026-50638

The Appointment Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 1.4.01. This is due to insufficient authorization and missing per-calendar ownership checks in the cpabc appointments calendar load2 function, which is reachable...

Cross site request forgery (csrf)

ownCloud Server before 4.5.7 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to /apps/calendar/export.php. NOTE: this issue has been reported as a cross-site request forgery CSRF vulnerability, but due to...