---
cve: "CVE-2026-5428"
severity: "MEDIUM"
cvss: 6.4
epss: "0.3%"
vendor: "wproyal"
kev: false
exploited: false
published: "2026-04-24 06:16:08"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T09:22:52+02:00"
---

# CVE-2026-5428

> 6.4 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://www.wordfence.com/threat-intel/vulnerabilities/id/ba7b8fe5-aa49-4a70-89c9-1b95a30b1142?source=cve>
- <https://plugins.trac.wordpress.org/browser/royal-elementor-addons/trunk/modules/media-grid/widgets/wpr-media-grid.php#L6755>
- <https://plugins.trac.wordpress.org/browser/royal-elementor-addons/tags/1.7.1049/modules/media-grid/widgets/wpr-media-grid.php#L6755>
- <https://plugins.trac.wordpress.org/browser/royal-elementor-addons/trunk/modules/media-grid/widgets/wpr-media-grid.php#L6752>
- <https://plugins.trac.wordpress.org/browser/royal-elementor-addons/tags/1.7.1049/modules/media-grid/widgets/wpr-media-grid.php#L6752>
- <https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3503209%40royal-elementor-addons&new=3503209%40royal-elementor-addons&sfp_email=&sfph_mail=>
- <https://research.cleantalk.org/cve-2026-5428>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-5428) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_