Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gall
- https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gall
- https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gall
- https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gall
- https://plugins.trac.wordpress.org/browser/filter-gallery/tags/1.1.4/filter-gall
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3695415%40filter-gall
- https://www.wordfence.com/threat-intel/vulnerabilities/id/73577a0d-8aac-4369-802
FAQ
What is CVE-2026-89138?
CVE-2026-89138 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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...
How severe is CVE-2026-89138?
CVE-2026-89138 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-89138?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.