Description
The Royal Elementor Addons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via image captions in the Image Grid/Slider/Carousel widget in versions up to and including 1.7.1056. This is due to insufficient output escaping in the render_post_thumbnail() function, where wp_kses_post() is used instead of esc_attr() for the alt attribute context. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page with the malicious image displayed in the media grid widget.
References7
- plugins.trac.wordpress.org/browser/royal-elementor-addons/tags/…
- plugins.trac.wordpress.org/browser/royal-elementor-addons/tags/…
- plugins.trac.wordpress.org/browser/royal-elementor-addons/trunk…
- plugins.trac.wordpress.org/browser/royal-elementor-addons/trunk…
- plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&repo…
- research.cleantalk.org/cve-2026-5428
- www.wordfence.com/threat-intel/vulnerabilities/id/ba7b8fe5-aa49…
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: 18 · as of 13 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.