CVE-2025-1766 Missing authorization in Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered)

Medium 5.3 Published 20 Mar 2025 Updated 8 Apr 2026

Unauthenticated attackers can update ticket payment statuses to completed, potentially causing financial loss in the Eventin WordPress plugin.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-1766?

CVE-2025-1766 is a medium-severity missing authorization vulnerability in arraytics Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered), published on 20 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Event Manager, Events Calendar, Tickets, Registrations – Eventin plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'payment_complete' function in all versions up to, and including, 4.0.24. This makes it possible for unauthenticated attackers to update the status of ticket payments to 'completed', possibly resulting in financial loss.

Weakness: CWE-862

Which versions are affected by CVE-2025-1766?

It affects 1 product.

Products include Themewinter Eventin.

How do I fix CVE-2025-1766?

No fix has been published for CVE-2025-1766 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-2025-1766 being exploited?

There is no known exploitation of CVE-2025-1766 in the wild and no public exploit code.

Sources

Also known as GHSA-64rq-wjgh-hg5p.