Auth bypass in Joedolson My Calendar – Accessible Event Manager
CVE-2026-11896
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (43.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Joedolson My Calendar – Accessible Event Manager — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/a72639df-fa05-414c-b30c-eb285…
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.php
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar.php
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.php
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-events.p…
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/ical.php
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/date-utilit…
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.php
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar.php
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.php
Frequently asked questions
- What is CVE-2026-11896?
- CVE-2026-11896 is a medium-severity vulnerability in Joedolson My Calendar – Accessible Event Manager, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-07-02.
- How severe is CVE-2026-11896?
- Medium severity. CVSS v3 base score is 5.3 out of 10.