CVE-2026-11821 Missing authorization in Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce
Authenticated subscribers can view, create, update, clone, and delete administrator-restricted notification workflows due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11821?
CVE-2026-11821 is a medium-severity missing authorization vulnerability in arraytics Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce, published on 9 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-11821?
How do I fix CVE-2026-11821?
No fix has been published for CVE-2026-11821 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-11821 being exploited?
There is no known exploitation of CVE-2026-11821 in the wild and no public exploit code.
Sources
Also known as GHSA-h92m-ghpm-pr23.