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CVE-2026-89406

HIGH 7.5 CVSS 3.1
Published
September 25, 2026
Last modified
September 25, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

The Modula Image Gallery – Photo Grid & Video Gallery plugin for WordPress is vulnerable to unauthorized disclosure of private gallery contents in versions up to, and including, 3.0.1. This is due to the Modula_Meta::add_metas() function being hooked to wp_head on every frontend request and looking up any post via get_post( $_GET['modula_gallery_id'] ) without verifying the gallery's post_status or the requester's capability to read it — the gallery-side input guard is bugged (empty('modula_gallery_id') tests a nonempty string literal instead of the GET parameter, so it is always false), the only object validation is a post_type === 'modula-gallery' check, and no is_user_logged_in()/current_user_can('read_post', $gallery_id) check is performed. This makes it possible for unauthenticated attackers to enumerate private modula-gallery posts and their member attachments and recover the image's title, description, dimensions, and original upload URL via Open Graph/Twitter meta tags emitted in the response, which then allows direct unauthenticated download of the original private image bytes.

Affected WordPress components

  • Modula Image Gallery – Photo Grid & Video Gallery Plugin · modula-best-grid-gallery
    Confirmed match Active
    Up to and including 3.0.1
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • wpchill Modula Image Gallery – Photo Grid & Video Gallery — Up to and including 3.0.1

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.1/includes/public/meta/class-modula-meta.php#L142
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.1/includes/public/meta/class-modula-meta.php#L26
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.1/includes/public/meta/class-modula-meta.php#L50
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.1/includes/public/meta/social_meta.php#L8
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3697043%40modula-best-grid-gallery&new=3697043%40modula-best-grid-gallery
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/a369dff6-feca-47cf-8511-dc75c4ffdd29?source=cve
  • nvd.nist.gov Official NVD record