Description
The Ultimate Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Navigation Menu Widget data-toggle-icon/data-close-icon Attributes in all versions up to, and including, 2.9.1 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. wp_kses_post, applied on save for users without unfiltered_html, does not neutralize HTML-entity-encoded payloads stored inside data-* attributes on kses-allowed elements, as the browser decodes these values client-side before jQuery .html() renders them as markup.
References10
- plugins.trac.wordpress.org/browser/header-footer-elementor/tags…
- plugins.trac.wordpress.org/browser/header-footer-elementor/tags…
- plugins.trac.wordpress.org/browser/header-footer-elementor/tags…
- plugins.trac.wordpress.org/browser/header-footer-elementor/tags…
- plugins.trac.wordpress.org/browser/header-footer-elementor/tags…
- plugins.trac.wordpress.org/browser/header-footer-elementor/tags…
- plugins.trac.wordpress.org/browser/header-footer-elementor/tags…
- plugins.trac.wordpress.org/browser/header-footer-elementor/tags…
- plugins.trac.wordpress.org/changeset/3614409/header-footer-elem…
- plugins.trac.wordpress.org/changeset?old_path=%2Fheader-footer-…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 37 · as of 14 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.