CVE-2026-4085: Maltathemes Easy Social Photos Gallery – Mif

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The Easy Social Photos Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wrapper_class' shortcode attribute of the 'my-instagram-feed' shortcode in all versions up to, and including, 3.1.2. This is due to insufficient input sanitization and output escaping on user supplied attributes. Specifically, the plugin uses sanitize_text_field() instead of esc_attr() when outputting the 'wrapper_class' attribute inside a double-quoted HTML class attribute. Since sanitize_text_field() does not encode double quotes, an attacker can break out of the class attribute and inject arbitrary HTML event handlers. 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.

Affected products

• Maltathemes Easy Social Photos Gallery – Mif: up to and including 3.1.2

Published 2026-04-22. Last modified 2026-06-17.