How severe is CVE-2025-1766?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Arraytics Eventin – Event Calendar, Registration, Tickets & Booking (Ai Powered)

CVE-2025-1766

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.

Vulnerability class: Broken Access Control

Published 2025-03-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.wordfence.com/threat-intel/vulnerabilities/id/f2bcaff9-bf04-4d8e-9422-c4332… (Third Party Advisory)
plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.0.24/core/Order/Pay… (Product)
plugins.trac.wordpress.org/changeset/3257023/ (Product)

Frequently asked questions

What is CVE-2025-1766?: CVE-2025-1766 is a medium-severity vulnerability in Arraytics Eventin – Event Calendar, Registration, Tickets & Booking (Ai Powered), classified under Missing Authorization. CVSS score: 5.3/10. Published 2025-03-20.
How severe is CVE-2025-1766?: Medium severity. CVSS v3 base score is 5.3 out of 10.