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CVE-2021-47736— CMSimple_XH 1.7.4 Authenticated Remote Code Execution via Content Editing

Quick assessment

Affected
Cmsimple-Xh CMSimple_XH
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.

CMSimple_XH是CMSimple_XH开源的一个快速、小型、易于使用且易于安装的模块化内容管理系统（CMS）。 CMSimple_XH 1.7.4版本存在代码注入漏洞，该漏洞源于内容编辑功能对文件上传验证不足，可能导致远程代码执行。

CVSS 7.2 · High EPSS 1.05% · P61

Affected Version Matrix 1

VendorProduct Version RangeStatus
Cmsimple-Xh CMSimple_XH 1.7.4 affected
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I. Basic Information for CVE-2021-47736

Vulnerability Information
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Vulnerability Title
CMSimple_XH 1.7.4 Authenticated Remote Code Execution via Content Editing
Source: CVE Program / CVE List V5
Vulnerability Description
CMSimple_XH 1.7.4 contains an authenticated remote code execution vulnerability in the content editing functionality that allows administrative users to upload malicious PHP files. Attackers with valid credentials can exploit the CSRF token mechanism to create a PHP shell file that enables arbitrary command execution on the server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
CMSimple_XH 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CMSimple_XH是CMSimple_XH开源的一个快速、小型、易于使用且易于安装的模块化内容管理系统（CMS）。 CMSimple_XH 1.7.4版本存在代码注入漏洞，该漏洞源于内容编辑功能对文件上传验证不足，可能导致远程代码执行。
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
Cmsimple-Xh CMSimple_XH 1.7.4 -

II. Public POCs for CVE-2021-47736

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III. Intelligence Information for CVE-2021-47736

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IV. Related Vulnerabilities

Same weakness: CWE-94

V. Comments for CVE-2021-47736

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