Missing authorization in Arraytics Eventin – Event Calendar, Tickets, Registration…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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-2026-11821
- 2026-10-03 Alias added: GHSA-h92m-ghpm-pr23
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/560a3102-c274-450f-9119-ea47ee2e7c65?source=cve
- https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.17/vendor/themewinter/email-notification-sdk/src/Flow/FlowAPI.php#L66
- https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.18/vendor/themewinter/email-notification-sdk/src/Flow/FlowAPI.php#L66
- https://plugins.trac.wordpress.org/changeset/3612206/wp-event-solution/trunk/vendor/themewinter/email-notification-sdk/src/Flow/FlowAPI.php
More Arraytics vulnerabilities
- TI-2025-30036 WordPress Eventin plugin <= 4.0.26 - Privilege Escalation Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2025-29942 WordPress Eventin plugin <= 4.0.26 - Arbitrary File Download Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-08599 Authorization bypass in Arraytics Timetics – Appointment Booking & Scheduling CVSS 3.1CRITICAL 9.8
- TI-2026-41447 WordPress Booktics plugin <= 1.0.21 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-29512 WordPress Timetics plugin <= 1.0.23 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8
- TI-2023-25913 WordPress WPCafe plugin <= 2.2.22 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-11821 · CVE Program
- CVE-2026-11821 · NVD
- FIRST EPSS
- GHSA-h92m-ghpm-pr23 · 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