What the vulnerability does
01Description
The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.5.4 (for Pro) & 2.2.7 (for Free). This is due to missing or incorrect nonce validation on the evo_eventpost_update_meta function. This makes it possible for unauthenticated attackers to update arbitrary post metadata via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Explanation of Vulnerability in Simple Terms
02Summary
EventON – Events Calendar versions 2.2.7 and earlier are vulnerable to cross-site request forgery (CSRF) attacks. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without the admin's knowledge or consent. The vulnerability requires the victim to visit the attacker's page while authenticated to EventON.
What an attacker can do
03Attacker Capabilities
Perform unwanted actions on the site by tricking an authenticated admin into visiting a malicious webpage.
Potential impact on your site
04Site Impact
An attacker can modify event settings, delete events, or change site configuration if an admin visits a malicious link while logged in.
Conditions required to exploit
05Prerequisites
Site admin must be logged in and visit an attacker-controlled webpage; no special privileges or complex setup required.
Key dates
06Disclosure timeline
January 11, 2024
CVE published
April 8, 2026
Record updated
