What the vulnerability does
01Description
The Eventin plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 4.0.34. This is due to the plugin not properly validating a user's identity or capability prior to updating their details like email in the 'Eventin\Speaker\Api\SpeakerController::update_item' function. This makes it possible for unauthenticated attackers with contributor-level and above permissions to change arbitrary user's email addresses, including administrators, and leverage that to reset the user's password and gain access to their account.
Explanation of Vulnerability in Simple Terms
02Summary
A privilege escalation vulnerability in Eventin versions up to 4.0.34 allows authenticated users with low privileges to read, modify, or delete sensitive data and disrupt site operations. The vulnerability stems from insufficient access controls on core functionality. Authenticated access is required, but no user interaction is needed. Site administrators should update immediately.
What an attacker can do
03Attacker Capabilities
Read, modify, or delete sensitive data; disrupt site availability.
Potential impact on your site
04Site Impact
Unauthorized users can access confidential event data, modify registrations, and cause service outages.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege authenticated account on the site.
Key dates
06Disclosure timeline
August 8, 2025
CVE published
April 8, 2026
Record updated
