AUGUST 16, 2026
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Case File

CVE-2026-18400

MEDIUM · CVSS 6.4 EPSS 0.25%

Source: NVD + CISA KEV + EPSS · Published 2026-08-06 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

The Slider, Gallery, and Carousel by MetaSlider plugin for WordPress is vulnerable to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in the 'delay' Post Meta Setting. This flaw allows authenticated attackers with custom-level access to inject malicious scripts into pages, which execute when users access those pages. WordPress site administrators and developers using this plugin should prioritize patching to mitigate potential exploitation risks.

CVE
CVE-2026-18400
Severity
MEDIUM
CVSS
6.4
EPSS
0.25%
WordPress

Original NVD Description

The Slider, Gallery, and Carousel by MetaSlider – Image Slider, Video Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'delay' Post Meta Setting in all versions up to, and including, 3.111.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The ml-slider custom post type is registered without custom capability restrictions and the ml-slider_settings meta key is unprotected, allowing Author-level users to set the malicious delay value via XML-RPC custom_fields when creating an ml-slider post.