Medium severity5.3NVD Advisory· Published Jul 2, 2026· Updated Jul 2, 2026
CVE-2026-11896
CVE-2026-11896
Description
The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.14 via the 'vcal' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to enumerate occurrence IDs and access the full iCalendar export of non-public, draft, trashed, and personal calendar events, disclosing sensitive event metadata including titles, descriptions, dates, locations, organizer and host details, permalinks, and related calendar metadata.
Affected products
1Patches
Vulnerability mechanics
References
14- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/date-utilities.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/ical.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-events.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/date-utilities.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/ical.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-events.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/a72639df-fa05-414c-b30c-eb285f59d945nvd
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