CVE-2026-89413 json
Filter Gallery <= 1.1.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Gallery Deletion via 'ufg_gallery_id' Parameter
published 2026-09-18 52 d ago modified 2026-09-18 51 d ago also EUVD-2026-82741
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
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 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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 51 d ago
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
Affected products
- farazfrank Filter Gallery
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/0487c6dd-7453-4473-9a13-6b699623f8a9?source=cve
- plugins.trac.wordpress.org /browser/filter-gallery/tags/1.1.4/filter-gallery.php#L1112
- plugins.trac.wordpress.org /browser/filter-gallery/tags/1.1.4/filter-gallery.php#L1099
- plugins.trac.wordpress.org /browser/filter-gallery/tags/1.1.4/filter-gallery.php#L1131
- plugins.trac.wordpress.org /changeset?reponame=&old=3695415%40filter-gallery&new=3695415%40filter-gallery
Sources
- CVE List CVE-2026-89413
- NVD CVE-2026-89413
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.