Auth bypass in Tigroumeow Meow Gallery
CVE-2026-1291
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
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: 0.002 (10.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Tigroumeow Meow Gallery — versions 0
Weakness classification (CWE)
References
- plugins.trac.wordpress.org/browser/meow-gallery/trunk/classes/rest.php
- 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
- wordpress.org/plugins/meow-gallery/
- www.wordfence.com/threat-intel/vulnerabilities/id/3386ea07-9c61-4b54-a451-1178c…
Frequently asked questions
- What is CVE-2026-1291?
- CVE-2026-1291 is a medium-severity vulnerability in Tigroumeow Meow Gallery, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-06-13.
- How severe is CVE-2026-1291?
- Medium severity. CVSS v3 base score is 4.3 out of 10.