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CVE-2026-111396— WordPress Advanced Post Manager plugin <= 4.5.6 - Broken Access Control vulnerability

Quick assessment

Affected
Liquid Web / StellarWP Advanced Post Manager
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.

Liquid Web / StellarWP 的 Advanced Post Manager（高级文章管理器）插件存在缺少授权（Missing Authorization）漏洞，该漏洞允许攻击者利用错误配置的访问控制安全级别进行攻击。此问题影响 Advanced Post Manager 从未知版本至 4.5.6 版本。

CVSS 7.1 · High

Possible ATT&CK Techniques 1 AI

T1548.001 · Setuid and Setgid

Affected Version Matrix 1

VendorProduct Version RangeStatus
Liquid Web / StellarWP Advanced Post Manager ≤ 4.5.6 affected
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I. Basic Information for CVE-2026-111396

Vulnerability Information
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Vulnerability Title
WordPress Advanced Post Manager plugin <= 4.5.6 - Broken Access Control vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Missing Authorization vulnerability in Liquid Web / StellarWP Advanced Post Manager advanced-post-manager allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Advanced Post Manager: from n/a through 4.5.6.
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:H
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
Liquid Web / StellarWP Advanced Post Manager 0 ~ 4.5.6 -

II. Public POCs for CVE-2026-111396

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III. Intelligence Information for CVE-2026-111396

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Security Blog Posts for CVE-2026-111396 (1)

Same Patch Batch · Liquid Web / StellarWP · 2026-10-16 · 3 CVEs total

CVE-2026-110903 6.5 MEDIUM WordPress The Events Calendar plugin <= 6.18.1 - Cross Site Scripting (XSS) vulnerability
CVE-2026-110900 5.3 MEDIUM WordPress BookIt plugin <= 2.6.0.5 - Broken Access Control vulnerability

IV. Related Vulnerabilities

Same product: Advanced Post Manager
Same vendor: Liquid Web / StellarWP
Same weakness: CWE-862

V. Comments for CVE-2026-111396

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