CVE-2023-6382: Averta Master Slider

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ms_slide' shortcode in all versions up to, and including, 3.9.9 due to insufficient input sanitization and output escaping on user supplied 'css_class' attribute. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Averta Master Slider: before 3.9.10 (fixed in 3.9.10)

Published 2024-06-01. Last modified 2026-06-17.