# CVE-2026-5428

> Vulnerability · severity: **MEDIUM** (CVSS 6.4).

## 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.

## Key facts

- **CVE ID:** CVE-2026-5428
- **Published:** 2026-04-24
- **CVSS severity:** MEDIUM
- **CVSS base score:** 6.4
- **CWE codes:** CWE-79

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5428

## Citation

> AI Analytics. CVE-2026-5428. Retrieved 2026-07-19 from https://api.ai-analytics.org/cve/CVE-2026-5428. Derived from NIST NVD. Licensed CC0.

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