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 delete any arbitrary Filter Gallery records — including all associated filters, image mappings, settings, and details options — by supplying attacker-controlled gallery IDs. The nonce bypass requires omitting the nonce POST field entirely rather than submitting an invalid value, as a present-but-invalid nonce is correctly rejected.
CVSS Score
HIGH
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/changeset?reponame=&old=3695415%40filter-gall
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0487c6dd-7453-4473-9a1
FAQ
What is CVE-2026-89413?
CVE-2026-89413 is a vulnerability with a CVSS score of 8.1 (HIGH). 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-2026-89413?
CVE-2026-89413 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-89413?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.