What is the CVSS score of CVE-2026-5428?

CVE-2026-5428 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Royal Elementor Addons CVE-2026-5428

EUVD-2026-25400 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-04-24 Wordfence

GHSA-f4r3-xfjm-5x8p

WordPress XSS Royal Addons For Elementor Addons And Templates Kit For Elementor Wordpress Plugin Wproyal

6.4

CVSS 3.1 · Vendor: Wordfence

Severity by source

Vendor (Wordfence) PRIMARY

6.4 MEDIUM

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

Primary rating from Vendor (Wordfence) · only source for this CVE.

CVSS VectorVendor: Wordfence

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Apr 24, 2026 - 06:30 vuln.today

EUVD ID Assigned

Apr 24, 2026 - 06:00 euvd

EUVD-2026-25400

Analysis Generated

Apr 24, 2026 - 06:00 vuln.today

CVE Published

Apr 24, 2026 - 05:29 nvd

MEDIUM 6.4

DescriptionCVE.org

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.

AnalysisAI

Stored cross-site scripting in Royal Elementor Addons plugin for WordPress up to version 1.7.1056 allows authenticated attackers with Author-level access to inject arbitrary JavaScript via image alt attributes in the Image Grid/Slider/Carousel widget. The vulnerability results from insufficient output escaping in the render_post_thumbnail() function, where wp_kses_post() is used instead of esc_attr() for HTML attribute context. Malicious scripts execute in the browsers of any user viewing pages containing the compromised image widget, potentially enabling session hijacking, credential theft, or plugin/theme manipulation.

Technical ContextAI

The vulnerability stems from improper output escaping in WordPress plugin development. The render_post_thumbnail() function in the Royal Elementor Addons media grid widget incorrectly uses wp_kses_post() to sanitize the alt attribute of HTML img elements. The wp_kses_post() function is designed to allow safe HTML tags and attributes in post content contexts, but it does not properly escape data meant for use in HTML attribute contexts (where different escaping rules apply). The correct function, esc_attr(), escapes attribute values to prevent HTML entity injection and script execution. This is a classic CWE-79 (Improper Neutralization of Input During Web Page Generation) vulnerability where user-controlled input reaches the DOM without proper context-aware escaping. The affected CPE indicates all versions up to and including 1.7.1056 of the 'Royal Addons for Elementor' plugin (WordPress plugin identifier: royal-elementor-addons) are vulnerable.

RemediationAI

Update Royal Elementor Addons to the latest patched version, available through the WordPress plugin repository at https://plugins.wordpress.org/royal-elementor-addons/. The vendor has released a fix in versions after 1.7.1056; administrators should update to the latest available version immediately via the WordPress admin dashboard (Plugins > Updates). As a temporary compensating control pending patching, restrict Author-level and above roles to trusted users only and regularly audit user role assignments. If the media grid widgets are not actively used, disable the Image Grid, Image Slider, and Image Carousel widgets in the Elementor settings. Additionally, implement WordPress security measures such as enabling two-factor authentication for user accounts with Author or higher roles to reduce the risk of account compromise. Website administrators should scan existing pages for suspicious alt text in media grid widgets and remove any injected content from the media library if compromise is suspected. Apply a Web Application Firewall (WAF) rule to detect and block requests containing script payloads in image alt attributes as a network-level safeguard.