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    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.

    Published:Jul 2, 2026
    Last Modified:Jul 2, 2026
    EPS:Jul 2, 2026
    EPSS Score:0.00544
    CVSS Score:5.3

    Affected Products

    Vendor
    Joedolson
    Product
    My Calendar – Accessible Event Manager
    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    References

    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/tags/3.7.14/includes/ical.php#L26
    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-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/my-calendar.php#L209
    https://plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/date-utilities.php#L417
    https://plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/ical.php#L26
    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-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/my-calendar.php#L209
    https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3572191%40my-calendar&new=3572191%40my-calendar&sfp_email=&sfph_mail=
    https://www.wordfence.com/threat-intel/vulnerabilities/id/a72639df-fa05-414c-b30c-eb285f59d945?source=cve

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High