CVE-2026-11821

Eventin <= 4.1.17 - Missing Authorization to Authenticated (Subscriber+) Notification Flow Management via notification-flow REST API Endpoint

Published Sep 9, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Arraytics
Arraytics eventin – Event Calendar, Event Registration, Tickets & Booking (ai Powered)
Wordpress
Wordpress wordpress
Vendors & Products Arraytics
Arraytics eventin – Event Calendar, Event Registration, Tickets & Booking (ai Powered)
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Eventin <= 4.1.17 - Missing Authorization to Authenticated (Subscriber+) Notification Flow Management via notification-flow REST API Endpoint
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Sep 9, 2026, 4:03 PM
Reserved
Jun 9, 2026, 5:46 PM
Status
Deferred
Published
Sep 9, 2026, 5:17 AM
Modified
Sep 9, 2026, 5:17 PM