What’s Vulnerable › Vulnerabilities

CVE-2026-4085: Easy Social Photos Gallery <= 3.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wrapper_class' Shortcode Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-22 · updated 2026-06-17
• Weakness: CWE-79

Description

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: through 3.1.2

References

• https://plugins.trac.wordpress.org/browser/my-instagram-feed/tags/3.1.2/frontend/class-my-instagram-feed-frontend.php#L53
• https://plugins.trac.wordpress.org/browser/my-instagram-feed/tags/3.1.2/frontend/views/feed.php#L102
• https://plugins.trac.wordpress.org/browser/my-instagram-feed/trunk/frontend/class-my-instagram-feed-frontend.php#L53
• https://plugins.trac.wordpress.org/browser/my-instagram-feed/trunk/frontend/views/feed.php#L102
• https://www.wordfence.com/threat-intel/vulnerabilities/id/8640724c-0bd4-4684-9fd1-027f2af64e67?source=cve

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