Vulnerabilities / Responsive Plus / WPSEC-2026-1436
Responsive Plus <= 3.5.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Elementor HTML Widget Import
Medium 6.4
CWE-79Fixed in 3.5.5
- ID
- WPSEC-2026-1436
- Plugin
- Responsive Starter Templates – Elementor Templates & Starter Sites (responsive-add-ons)
- Affected
- from 2.7.3 before 3.5.5
- Remediation
- Update to 3.5.5 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 Low · Affected versions Low among sites WPSec scans, 2026-10-22
- Attack surface
- Responsive Plus on WPSec AttackSurface
- Fix released
- Published
Description
The Responsive Starter Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'responsive-ready-sites-elementor_page_import_process' AJAX action in versions 2.7.3 up to, and including, 3.5.4. This is due to the function saving Elementor data fetched from a URL the user supplies, including HTML widget markup, without checking the unfiltered_html capability or sanitizing the content. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts into pages that execute whenever a user accesses an injected page.
References
- https://wpsec.com/vuln/WPSEC-2026-1436/
- https://plugins.svn.wordpress.org/responsive-add-ons/tags/3.5.5/
- https://wordpress.org/plugins/responsive-add-ons/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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