WordPress security changelog
MEDIUM CVE-2026-4109 Deferred

Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered): A security weakness

Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 4.1.8.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered)
Plugin slug
eventin-events-calendar-event-booking-ticket-registration-ai-powered
Affected
<= 4.1.8
Safe version
> 4.1.8
Published
Apr 14, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Apr 14, 2026 and is one of 1 known issue for this plugin.

Update, patch or deactivate.

Update Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) to a release after 4.1.8, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The Eventin – Events Calendar, Event Booking, Ticket & Registration (AI Powered) plugin for WordPress is vulnerable to unauthorized access of data due to a improper capability check on the get_item_permissions_check() function in all versions up to, and including, 4.1.8. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read arbitrary order data including customer PII (name, email, phone) by iterating order IDs.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Primary and upstream sources