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CVE-2026-18400

Slider, Gallery, and Carousel by MetaSlider <= 3.111.0 - Authenticated (Author+) Stored Cross-Site Scripting via 'delay' Post Meta Setting

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.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Metaslider Wordpress
Products
Slider, Gallery, And Carousel By Metaslider – Image Slider, Video Slider Wordpress
CVE-2026-39467

WordPress Responsive Slider by MetaSlider plugin <= 3.106.0 - PHP Object Injection vulnerability

Deserialization of Untrusted Data vulnerability in MetaSlider Responsive Slider by MetaSlider allows Object Injection.This issue affects Responsive Slider by MetaSlider: from n/a through 3.106.0.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Metaslider Wordpress
Products
Responsive Slider By Metaslider Wordpress
CVE-2025-5337

Slider, Gallery, and Carousel by MetaSlider <= 3.98.0 - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via aria-label Parameter

The Slider, Gallery, and Carousel by MetaSlider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘aria-label’ parameter in all versions up to, and including, 3.98.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Metaslider
Products
Slider\, Gallery\, And Carousel
CVE-2024-3285

Slider, Gallery, and Carousel by MetaSlider – Responsive WordPress Slideshows <= 3.70.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via metaslider Shortcode

The Slider, Gallery, and Carousel by MetaSlider – Responsive WordPress Slideshows plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'metaslider' shortcode in all versions up to, and including, 3.70.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Metaslider
Products
Slider\, Gallery\, And Carousel
CVE-2025-1062

Slider, Gallery, Carousel by MetaSlider < 3.95.0 - Editor+ Stored XSS

The Slider, Gallery, and Carousel by MetaSlider WordPress plugin before 3.95.0 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Metaslider
Products
Slider\, Gallery\, And Carousel
CVE-2025-1203

Slider, Gallery, Carousel by MetaSlider < 3.95.0 - Editor+ Stored XSS

The Slider, Gallery, and Carousel by MetaSlider WordPress plugin before 3.95.0 does not sanitise and escape some of its settings, which could allow high privilege users such as editor to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Metaslider
Products
Slider\, Gallery\, And Carousel
CVE-2023-1473

Responsive WordPress Slideshows 3.29.0 - Reflected XSS

The Slider, Gallery, and Carousel by MetaSlider WordPress plugin 3.29.0 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Vendors
Metaslider
Products
Slider\, Gallery\, And Carousel
CVE-2022-2823

Slider, Gallery, and Carousel by MetaSlider < 3.27.9 - Admin+ Stored Cross Site Scripting

The Slider, Gallery, and Carousel by MetaSlider WordPress plugin before 3.27.9 does not sanitise and escape some of its Gallery Image parameters, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Metaslider
Products
Slider\, Gallery\, And Carousel