What the vulnerability does
01Description
The Quiz Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `vc_quizmaker` shortcode in all versions up to, and including, 6.7.1.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Note: This vulnerability requires WPBakery Page Builder to be installed and active
Explanation of Vulnerability in Simple Terms
02Summary
Quiz Maker versions up to 6.7.1.7 contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has changed scope, meaning injected code can affect other users or site functionality beyond the vulnerable component. An attacker with low-level site access can craft malicious quiz content that executes in other users' browsers when they interact with quizzes.
What an attacker can do
03Attacker Capabilities
Inject JavaScript that runs in other users' browsers when they view or interact with quizzes.
Potential impact on your site
04Site Impact
Authenticated users can inject malicious scripts affecting other site visitors; may lead to credential theft, session hijacking, or defacement.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account on the site (e.g., contributor or subscriber role).
Key dates
06Disclosure timeline
February 20, 2026
CVE published
April 8, 2026
Record updated
