Vulnerability in Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce — CVE-2026-109994

What to do now

Update Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce to 4.1.30 or later.

Affected versions

• Everything up to and including 4.1.29

The Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.1.29 via the 'id' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract the email address and phone number of any WordPress user, including administrators, by supplying their user id in a query-string parameter while placing the authenticated user's own id in the URL path.

This description is reproduced verbatim from the public vulnerability record.

• https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.26/core/AccessControl/Ownership.php#L413
• https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.26/core/AccessControl/Ownership.php#L59
• https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.26/core/speaker/Api/SpeakerController.php#L161
• https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.26/core/speaker/Api/SpeakerController.php#L393
• https://plugins.trac.wordpress.org/changeset/3749617/wp-event-solution/trunk/core/speaker/Api/SpeakerController.php
• https://plugins.trac.wordpress.org/changeset/3759930/wp-event-solution/trunk/core/speaker/Api/SpeakerController.php

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.