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CVE-2026-27366— WordPress MainWP Child plugin <= 6.1.1 - Broken Access Control vulnerability

Quick assessment

Affected
MainWP MainWP Child
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.

mainwp child是mainwp个人开发者开源的一个网站管理辅助插件。 MainWP Child 6.1.1及之前版本存在授权问题漏洞，该漏洞源于访问控制不当，可能导致未经身份验证的攻击者利用高攻击复杂度进行破坏。

CVSS 7.5 · High EPSS 0.31% · P22

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
MainWP MainWP Child n/a≤ 6.1.1 affected
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I. Basic Information for CVE-2026-27366

Vulnerability Information
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Vulnerability Title
WordPress MainWP Child plugin <= 6.1.1 - Broken Access Control vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Broken Access Control in MainWP Child <= 6.1.1 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
MainWP Child 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mainwp child是mainwp个人开发者开源的一个网站管理辅助插件。 MainWP Child 6.1.1及之前版本存在授权问题漏洞，该漏洞源于访问控制不当，可能导致未经身份验证的攻击者利用高攻击复杂度进行破坏。
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
MainWP MainWP Child n/a ~ 6.1.1 -

II. Public POCs for CVE-2026-27366

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III. Intelligence Information for CVE-2026-27366

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Other References for CVE-2026-27366 (1)

IV. Related Vulnerabilities

Same product: MainWP Child
Same vendor: MainWP
Same weakness: CWE-862

V. Comments for CVE-2026-27366

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