What the vulnerability does
01Description
The Happy Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Image Stack Group, Photo Stack, & Horizontal Timeline widgets in all versions up to, and including, 3.10.4 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.
Explanation of Vulnerability in Simple Terms
02Summary
Happy Addons for Elementor versions up to 3.10.4 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, potentially compromising their sessions or stealing data. The vulnerability affects the site's scope, meaning the injected code can impact multiple users and components.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers and steal their session data or perform actions on their behalf.
Potential impact on your site
04Site Impact
Visitors and admins may have their sessions hijacked or data stolen; site reputation and user trust can be damaged.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege authenticated account (e.g., subscriber or contributor role) on the WordPress site.
Key dates
06Disclosure timeline
May 2, 2024
CVE published
April 8, 2026
Record updated
