Auth bypass in Farazfrank Filter Gallery
CVE-2026-89138
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/73577a0d-8aac-4369-8022-98c19…
- plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php
- plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php
- plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php
- plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php
- plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gallery.php
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-89138?
- CVE-2026-89138 is a medium-severity vulnerability in Farazfrank Filter Gallery, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-09-18.
- How severe is CVE-2026-89138?
- Medium severity. CVSS v3 base score is 4.3 out of 10.