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CVE-2026-13747— Meow Gallery <= 5.5.4 - Missing Authorization to Authenticated (Author+) Information Disclosure via fetch_posts REST Endpoint

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.

WordPress 的 Meow Gallery 插件在所有 5.5.4 及之前的版本中存在授权绕过漏洞。该问题源于插件未能正确验证用户是否具备执行特定操作的权限。这使得拥有作者（Author）级别或更高权限的已认证攻击者，能够枚举并读取网站上所有私密和草稿文章的元数据（包括文章 ID、标题、日期、作者和状态），其中包括由其他用户创建的文章。

CVSS 6.5 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
tigroumeow Meow Gallery ≤ 5.5.4 affected
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I. Basic Information for CVE-2026-13747

Vulnerability Information
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Vulnerability Title
Meow Gallery <= 5.5.4 - Missing Authorization to Authenticated (Author+) Information Disclosure via fetch_posts REST Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
The Meow Gallery plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.5.4 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and above, to enumerate and read metadata — including post ID, title, date, author, and status — of all private and draft posts on the site, including those authored by other users.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
tigroumeow Meow Gallery 0 ~ 5.5.4 -

II. Public POCs for CVE-2026-13747

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III. Intelligence Information for CVE-2026-13747

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Other References for CVE-2026-13747 (5)

Same Patch Batch · tigroumeow · 2026-10-30 · 4 CVEs total

CVE-2025-8574 8.7 HIGH Database Cleaner <= 1.4.7 - Authenticated (Administrator+) Arbitrary Table Deletion
CVE-2026-110732 7.5 HIGH AI Engine – The Chatbot, AI Framework & MCP for WordPress <= 3.8.6 - Missing Authorization
CVE-2026-9239 6.4 MEDIUM Meow Gallery <= 5.5.1 - Authenticated (Author+) Stored Cross-Site Scripting via Attachment

IV. Related Vulnerabilities

Same product: Meow Gallery
Same vendor: tigroumeow
Same weakness: CWE-862