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CVE-2026-1291— Meow Gallery <= 5.4.4 - Missing Authorization to Authenticated (Author+) Shortcode creation

Quick assessment

Affected
tigroumeow Meow Gallery
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Meow Gallery是tigroumeow个人开发者的一款轻量级、精致的 WordPress 图库解决方案。 tigroumeow Meow Gallery 5.4.4及之前版本存在授权问题漏洞，该漏洞源于/wp - json/meow - gallery/v1/save_shortcode 这个 REST API 端点缺少权限检查，导致具有作者级别及以上权限的认证攻击者，通过提供用户可控的 id 值，能够任意创建或覆盖现有的图库短代码记录。

CVSS 4.3 · Medium EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
tigroumeow Meow Gallery ≤ 5.4.4 affected
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I. Basic Information for CVE-2026-1291

Vulnerability Information
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Vulnerability Title
Meow Gallery <= 5.4.4 - Missing Authorization to Authenticated (Author+) Shortcode creation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
tigroumeow Meow Gallery 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Meow Gallery是tigroumeow个人开发者的一款轻量级、精致的 WordPress 图库解决方案。 tigroumeow Meow Gallery 5.4.4及之前版本存在授权问题漏洞，该漏洞源于/wp - json/meow - gallery/v1/save_shortcode 这个 REST API 端点缺少权限检查，导致具有作者级别及以上权限的认证攻击者，通过提供用户可控的 id 值，能够任意创建或覆盖现有的图库短代码记录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
tigroumeow Meow Gallery 0 ~ 5.4.4 -

II. Public POCs for CVE-2026-1291

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III. Intelligence Information for CVE-2026-1291

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Patches & Fixes for CVE-2026-1291 (1)

Security Blog Posts for CVE-2026-1291 (1)

Vendor Pages for CVE-2026-1291 (1)

IV. Related Vulnerabilities

Same product: Meow Gallery
Same vendor: tigroumeow
Same weakness: CWE-639

V. Comments for CVE-2026-1291

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