---
id: CVE-2026-89138
title: >-
  The Filter Gallery plugin for WordPress is vulnerable to authorization bypass
  in all versions up to, and including, 1.1.4
summary: >-
  The Filter Gallery plugin for WordPress is vulnerable to authorization bypass
  in all versions up to, and including, 1.1.4. This is due to the plugin not
  properly verifying that a user is authorized to perform an action. This makes
  it pos…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
vendor: farazfrank
product: Filter Gallery
affected:
  - filter_gallery <= 1.1.4
published: '2026-09-18'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T15:17:17.767'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89138'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php#L843
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php#L845
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php#L884
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php#L885
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php#L902
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3695415%40filter-gallery&new=3695415%40filter-gallery
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/73577a0d-8aac-4369-8022-98c198f79224?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-18T14:17:58.488796Z'
epss: 0.00227
epssPercentile: 0.13672
ingestedAt: '2026-09-18T07:37:23.433Z'
---

## Overview

The Filter Gallery plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.1.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to overwrite the title and content of arbitrary WordPress posts, write the _wp_attachment_image_alt meta key on arbitrary posts, and create or overwrite arbitrary ufg_gallery_* options.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.