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CVE-2021-47933— WordPress MStore API 2.0.6 Arbitrary File Upload

Quick assessment

Affected
mstore MStore API
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和WordPress plugin都是WordPress基金会的产品。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。WordPress plugin是一个应用插件。 WordPress plugin MStore API 2.0.6版本存在访问控制错误漏洞，该漏洞源于任意文件上传漏洞，允许未经身份验证的攻击者通过向REST API端点发送POST请求上传恶意文件，攻击者可以向config_file端点上传任意名称

CVSS 9.8 · Critical EPSS 0.59% · P46

Affected Version Matrix 1

VendorProduct Version RangeStatus
mstore MStore API 2.0.6 affected
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I. Basic Information for CVE-2021-47933

Vulnerability Information
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Vulnerability Title
WordPress MStore API 2.0.6 Arbitrary File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
WordPress MStore API 2.0.6 contains an arbitrary file upload vulnerability that allows unauthenticated attackers to upload malicious files by sending POST requests to the REST API endpoint. Attackers can upload PHP files with arbitrary names to the config_file endpoint to achieve remote code execution on the server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin MStore API 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。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。WordPress plugin是一个应用插件。 WordPress plugin MStore API 2.0.6版本存在访问控制错误漏洞，该漏洞源于任意文件上传漏洞，允许未经身份验证的攻击者通过向REST API端点发送POST请求上传恶意文件，攻击者可以向config_file端点上传任意名称
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
mstore MStore API 2.0.6 -

II. Public POCs for CVE-2021-47933

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III. Intelligence Information for CVE-2021-47933

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Vendor Advisories for CVE-2021-47933 (1)

Exploits & Public PoCs for CVE-2021-47933 (1)

IV. Related Vulnerabilities

Same product: MStore API
Same weakness: CWE-306

V. Comments for CVE-2021-47933

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