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CVE-2021-47943— TextPattern CMS 4.8.7 Remote Code Execution via File Upload

Quick assessment

Affected
Textpattern TextPattern CMS
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.

Textpattern CMS是Textpattern团队的一个基于Php的内容管理系统。 TextPattern CMS 4.8.7版本存在代码问题漏洞，该漏洞源于文件上传功能存在远程代码执行，可能导致经过身份验证的攻击者通过上传恶意PHP文件执行任意命令。

CVSS 8.8 · High EPSS 0.62% · P47

Affected Version Matrix 1

VendorProduct Version RangeStatus
Textpattern TextPattern CMS 4.8.7 affected
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I. Basic Information for CVE-2021-47943

Vulnerability Information
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Vulnerability Title
TextPattern CMS 4.8.7 Remote Code Execution via File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
TextPattern CMS 4.8.7 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands by uploading malicious PHP files through the file upload functionality. Attackers can upload a PHP shell via the Files section in the content area and execute commands by accessing the uploaded file at /textpattern/files/ with GET parameters passed to the system function.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Textpattern CMS 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Textpattern CMS是Textpattern团队的一个基于Php的内容管理系统。 TextPattern CMS 4.8.7版本存在代码问题漏洞，该漏洞源于文件上传功能存在远程代码执行，可能导致经过身份验证的攻击者通过上传恶意PHP文件执行任意命令。
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
Textpattern TextPattern CMS 4.8.7 -

II. Public POCs for CVE-2021-47943

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III. Intelligence Information for CVE-2021-47943

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Vendor Advisories for CVE-2021-47943 (1)

Exploits & Public PoCs for CVE-2021-47943 (2)

IV. Related Vulnerabilities

Same product: TextPattern CMS
Same vendor: Textpattern
Same weakness: CWE-434

V. Comments for CVE-2021-47943

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