What’s Vulnerable › Vulnerabilities

CVE-2026-1302: Meta-box GalleryMeta <= 3.0.1 - Authenticated (Editor+) Stored Cross-Site Scripting via Image Caption

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-24 · updated 2026-06-17
• Weakness: CWE-79

Description

The Meta-box GalleryMeta plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected products

• shahinurislam Meta-box GalleryMeta: through 3.0.1

References

• https://plugins.trac.wordpress.org/browser/meta-box-gallerymeta/tags/3.0.1/gallerymetaboxes.php#L119
• https://plugins.trac.wordpress.org/browser/meta-box-gallerymeta/tags/3.0.1/gallerymetaboxes.php#L314
• https://plugins.trac.wordpress.org/browser/meta-box-gallerymeta/tags/3.0.1/templates/single-mb_gallery.php#L31
• https://plugins.trac.wordpress.org/browser/meta-box-gallerymeta/tags/3.0.1/templates/single-mb_gallery.php#L33
• https://plugins.trac.wordpress.org/changeset/3446962/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/bb9ae252-7e5f-4dc0-a162-100493b81980?source=cve

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