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CVE-2026-11821

MEDIUM 5.4 CVSS 3.1
Published
September 9, 2026
Last modified
September 9, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Description

The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.1.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to view, create, update, clone, and delete notification flow event automation workflows that should be restricted to administrators.

Affected WordPress components

  • Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce Plugin · wp-event-solution
    Confirmed match Active
    Up to and including 4.1.17
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • arraytics Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce — Up to and including 4.1.17

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.17/vendor/themewinter/email-notification-sdk/src/Flow/FlowAPI.php#L66
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.18/vendor/themewinter/email-notification-sdk/src/Flow/FlowAPI.php#L66
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3612206/wp-event-solution/trunk/vendor/themewinter/email-notification-sdk/src/Flow/FlowAPI.php
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/560a3102-c274-450f-9119-ea47ee2e7c65?source=cve
  • nvd.nist.gov Official NVD record