What the vulnerability does
01Description
The Metform Elementor Contact Form Builder for WordPress is vulnerable to Cross-Site Scripting by using the 'fname' attribute of the 'mf_thankyou' shortcode to echo unescaped form submissions in versions up to, and including, 3.3.0. This allows authenticated attackers, with contributor-level permissions or above, to inject arbitrary web scripts in pages that will execute when the victim visits a a page containing the shortcode when the submission id is present in the query string. Note that getting the JavaScript to execute requires user interaction as the victim must visit a crafted link with the form entry id, but the script itself is stored in the site database. Additionally this requires successful payment, increasing the complexity.
Explanation of Vulnerability in Simple Terms
02Summary
MetForm versions up to 3.3.0 contain a cross-site scripting (XSS) vulnerability that allows authenticated users with low privileges to inject malicious scripts. The vulnerability has a changed scope, meaning the impact can extend beyond the vulnerable component itself. An attacker needs valid login credentials and network access to exploit it.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers and affect other parts of the site.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other users and site functionality; requires account compromise or insider threat.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site; no user interaction required.
Key dates
06Disclosure timeline
June 9, 2023
CVE published
April 8, 2026
Record updated
