What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
MetaSlider versions up to 3.70.0 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts into slider content that execute in the browsers of other site visitors. The vulnerability affects the scope beyond the vulnerable component, potentially compromising site security and visitor data.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers when they view affected sliders.
Potential impact on your site
04Site Impact
Visitors may be exposed to malicious scripts; site reputation and visitor data at risk.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege authenticated account on the site.
Key dates
06Disclosure timeline
April 11, 2024
CVE published
April 8, 2026
Record updated
