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CVE-2026-11896 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/date-utilities.php#L417	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/ical.php#L26	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.php#L212	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.php#L246	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-events.php#L748	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar.php#L209	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/date-utilities.php#L417	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/ical.php#L26	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.php#L212	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.php#L246	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-events.php#L748	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar.php#L209	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3572191%40my-calendar&new=3572191%40my-calendar&sfp_email=&sfph_mail=	[email protected]	Source CodeVendor
https://www.wordfence.com/threat-intel/vulnerabilities/id/a72639df-fa05-414c-b30c-eb285f59d945?source=cve	[email protected]	AdvisoryBundleRemedy

see all 14 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-639	Authorization Bypass Through User-Controlled Key	[email protected]

Affected Products

Product	Versions
My Calendar	<= 3.7.14 (semver)
CPE cpe:2.3:a:my_calendar_project:my_calendar::::::wordpress::* Remediation No remediation found in references.

Change History

2 change records found show changes

Date	Action	Recorded By
Jul 2, 2026	CVE Modified	CISA-ADP
Jul 2, 2026	New CVE Received	[email protected]