CVE-2026-1291 json
Meow Gallery <= 5.4.4 - Missing Authorization to Authenticated (Author+) Shortcode creation
published 2026-06-13 4 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-36649
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 11%
- public exploits
- 0
- none known
Summary
The Meow Gallery plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the REST API endpoint /wp-json/meow-gallery/v1/save_shortcode in all versions up to, and including, 5.4.4 This makes it possible for authenticated attackers, with Author-level access and above, to arbitrarily create or overwrite existing gallery shortcode records by supplying a user-controlled id value. The endpoint performs database update operations without verifying that the requesting user is authorized to modify the referenced gallery record or create their own.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- tigroumeow Meow Gallery
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/3386ea07-9c61-4b54-a451-1178ca6325cb?source=cve
- plugins.trac.wordpress.org /browser/meow-gallery/trunk/classes/rest.php
- wordpress.org /plugins/meow-gallery/
- plugins.trac.wordpress.org /changeset/3469543/meow-gallery
- plugins.trac.wordpress.org /changeset/3469543/meow-gallery/trunk/classes/rest.php
- plugins.trac.wordpress.org /changeset?old_path=%2Fmeow-gallery/tags/5.4.4&new_path=%2Fmeow-gallery/tags/5.4.5
Sources
- CVE List CVE-2026-1291
- NVD CVE-2026-1291
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.