WordPress security changelog
MEDIUM CVE-2026-1291 Deferred

Meow Gallery: A security weakness

Meow Gallery is affected by a security weakness. Exploitation requires at least author-level access. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 5.4.4.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Meow Gallery
Plugin slug
meow-gallery
Affected
<= 5.4.4
Safe version
> 5.4.4
Published
Jun 13, 2026
Weakness
CWE-639 — Authorization Bypass Through User-Controlled Key

This CVE was published Jun 13, 2026 and is one of 5 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Meow Gallery to a release after 5.4.4, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

Primary and upstream sources