CVE-2025-14635
Unknown Unknown - Not Provided
Stored XSS in Happy Addons for Elementor Plugin Allows Script Injection

Publication date: 2025-12-23

Last updated on: 2025-12-23

Assigner: Wordfence

Description
The Happy Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ha_page_custom_js' parameter in all versions up to, and including, 3.20.3 due to insufficient input sanitization and output escaping. 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, despite the intended role restriction of Custom JS to Administrators.
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Meta Information
Published
2025-12-23
Last Modified
2025-12-23
Generated
2026-06-16
AI Q&A
2025-12-23
EPSS Evaluated
2026-06-15
NVD
CVE-2025-14635
EUVD
EUVD-2025-204795
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
happy_addons happy_elementor_addons 3.20.2
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

CVE-2025-14635 is a Stored Cross-Site Scripting (XSS) vulnerability in the Happy Addons for Elementor WordPress plugin, affecting all versions up to 3.20.3. It arises because the plugin does not properly sanitize or escape input for the 'ha_page_custom_js' parameter, which allows authenticated users with Contributor-level access or higher to inject arbitrary JavaScript code into pages. This injected code executes whenever any user views the affected page, bypassing the intended restriction that only administrators can add or edit custom JavaScript. [1]

Impact Analysis

This vulnerability can allow attackers with Contributor-level access or above to inject malicious JavaScript into pages on a WordPress site using the Happy Addons plugin. The malicious scripts can execute in the browsers of users who visit the infected pages, potentially leading to theft of user credentials, session hijacking, defacement, or other malicious actions that compromise site security and user data. [1]

Detection Guidance

Detection of this vulnerability involves checking if the 'ha_page_custom_js' parameter in the Happy Addons for Elementor plugin is being modified or injected by users with Contributor-level access or above. Since the vulnerability allows stored cross-site scripting via this parameter, you can audit the WordPress database for posts or pages containing suspicious or unexpected JavaScript code in the 'ha_page_custom_js' field. Additionally, monitoring HTTP requests that attempt to modify this parameter by non-administrator users can help detect exploitation attempts. Specific commands are not provided in the resources. [1]

Mitigation Strategies

Immediate mitigation steps include updating the Happy Addons for Elementor plugin to a version later than 3.20.3, as the vulnerability affects all versions up to and including 3.20.3. Restricting Contributor-level and other non-administrator users from accessing or modifying the 'Custom JS' feature can also help mitigate the risk. Additionally, reviewing and removing any suspicious custom JavaScript code injected via the 'ha_page_custom_js' parameter is recommended. [1, 3]

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