What the vulnerability does
01Description
The The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 3.1.1. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute arbitrary shortcodes.
Explanation of Vulnerability in Simple Terms
02Summary
Everest Forms versions 3.1.1 and earlier contain a code injection vulnerability in form processing. An authenticated user with low privileges can inject and execute arbitrary code through form input fields. The vulnerability requires an attacker to be logged in but does not require user interaction. This allows unauthorized code execution within the site's context.
What an attacker can do
03Attacker Capabilities
Run arbitrary code on the site with the privileges of the logged-in user.
Potential impact on your site
04Site Impact
Any user with login access can execute code, potentially compromising site data and functionality.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
April 11, 2025
CVE published
April 8, 2026
Record updated
