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CVE-2026-1675— Advanced Country Blocker <= 2.3.1 - Unauthenticated Authorization Bypass via Insecure Default Secret Key

Quick assessment

Affected
brstefanovic Advanced Country Blocker
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是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。checklist是使用在其中的一个用于将网页列表转换为清单文件的插件。req是一个使用 Black Magic 的简单 Go HTTP 客户端。Press是一个运行 Frappe Cloud 的 Frappe 自定义应用程序。 WordPress plugin Advanced Country Blocker 2.3.1及之前版本存在安全漏洞，该漏洞源于使用可预测的默认密钥且未要求用

CVSS 5.3 · Medium EPSS 0.39% · P33

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-1675

Vulnerability Information
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Vulnerability Title
Advanced Country Blocker <= 2.3.1 - Unauthenticated Authorization Bypass via Insecure Default Secret Key
Source: CVE Program / CVE List V5
Vulnerability Description
The Advanced Country Blocker plugin for WordPress is vulnerable to Authorization Bypass in all versions up to, and including, 2.3.1 due to the use of a predictable default value for the secret bypass key created during installation without requiring users to change it. This makes it possible for unauthenticated attackers to bypass the geolocation blocking mechanism by appending the key to any URL on sites where the administrator has not changed the default value.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的默认资源初始化
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Advanced Country Blocker 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。checklist是使用在其中的一个用于将网页列表转换为清单文件的插件。req是一个使用 Black Magic 的简单 Go HTTP 客户端。Press是一个运行 Frappe Cloud 的 Frappe 自定义应用程序。 WordPress plugin Advanced Country Blocker 2.3.1及之前版本存在安全漏洞，该漏洞源于使用可预测的默认密钥且未要求用
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
brstefanovic Advanced Country Blocker * ~ 2.3.1 -

II. Public POCs for CVE-2026-1675

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III. Intelligence Information for CVE-2026-1675

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Patches & Fixes for CVE-2026-1675 (3)

IV. Related Vulnerabilities

Same weakness: CWE-1188