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CVE-2026-1291

4.3
MEDIUMCVSS v3.1 Base Score
0.03%
LOW RiskEPSS (10th percentile)

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.

Published: 6/13/2026
Modified: 6/13/2026
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Vulnerability Summary

CVSS v3 Score

4.3MEDIUM

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

EPSS Score (Exploitation Probability)

0.03%LOW Exploitation Risk
10th percentile

This vulnerability has a 0.03% probability of being exploited in the next 30 days, ranking higher than 10% of all scored CVEs.

CWE Classification

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Same Weakness Type(CWE-639)

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