Authorization bypass in joedolson My Calendar – Accessible Event Manager
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-11896
- 2026-10-03 Alias added: GHSA-rfww-46mr-4mrf
References
Other 14
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a72639df-fa05-414c-b30c-eb285f59d945?source=cve
- https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.php#L212
- https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar.php#L209
- https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.php#L246
- https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-events.php#L748
- https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/ical.php#L26
- https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/date-utilities.php#L417
- https://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.php#L212
- https://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar.php#L209
- https://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.php#L246
- https://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-events.php#L748
- https://plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/ical.php#L26
- https://plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/date-utilities.php#L417
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3572191%40my-calendar&new=3572191%40my-calendar&sfp_email=&sfph_mail=
More joedolson vulnerabilities
- TI-2023-05838 SQL injection in my-calendar CVSS 3.1CRITICAL 9.8
- TI-2026-29085 My Calendar: Unauthenticated Information Disclosure (IDOR) via Multisite switch_to_blog CVSS 4.0HIGH 8.8
- TI-2024-01186 My Calendar < 3.4.24 - Authenticated Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2026-75163 Unauthenticated privilege escalation in My Calendar WordPress plugin CVSS 3.1CRITICAL 9.8
- TI-2025-03313 My Tickets – Accessible Event Ticketing <= 2.0.16 - Authenticated (Subscriber+) Privilege Escalation CVSS 3.1HIGH 8.8
- TI-2026-21820 WordPress My Tickets plugin <= 2.1.0 - Sensitive Data Exposure vulnerability CVSS 3.1HIGH 7.5
Sources
- CVE-2026-11896 · CVE Program
- CVE-2026-11896 · NVD
- FIRST EPSS
- GHSA-rfww-46mr-4mrf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences