What the vulnerability does
01Description
The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's masterslider_pb and ms_slide shortcodes in all versions up to, and including, 3.10.8 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
Master Slider contains a cross-site scripting (XSS) vulnerability in versions up to 3.10.8. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, potentially stealing session data or performing actions on their behalf. The vulnerability affects the entire site scope due to how the slider processes and renders user input.
What an attacker can do
03Attacker Capabilities
Inject JavaScript code that runs in other users' browsers and steals their session data or performs actions as them.
Potential impact on your site
04Site Impact
Authenticated users' accounts and data are at risk; attackers can hijack sessions or modify site content through victim accounts.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account on the site (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
June 17, 2025
CVE published
April 8, 2026
Record updated
