The Plus Addons for Elementor <= 6.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Syntax Highlighter and Page Scroll Widgets
- ID
- WPSEC-2026-1799
- Plugin
- The Plus Addons for Elementor – Mega Menu, Header Footer, Post Grid, AI Widgets & Templates (the-plus-addons-for-elementor-page-builder)
- Affected
- all versions before 6.6.0
- Remediation
- Update to 6.6.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-27
- Attack surface
- The Plus Addons for Elementor on WPSec AttackSurface
- Fix released
- Published
Description
The The Plus Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Syntax Highlighter widget's copy and copied button labels and the Page Scroll widget's navigation dot tooltips and section anchors in all versions up to, and including, 6.5.3, due to insufficient input sanitization and output escaping. The shared sanitizer removed only hexadecimal entities, so encoded markup passed it, and esc_html()/esc_attr() do not double-encode existing entities, so the browser decoded the data attributes back into markup, which the frontend scripts then inserted as HTML. 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.
References
- https://wpsec.com/vuln/WPSEC-2026-1799/
- https://plugins.svn.wordpress.org/the-plus-addons-for-elementor-page-builder/tags/6.6.0/
- https://wordpress.org/plugins/the-plus-addons-for-elementor-page-builder/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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