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CVE-2021-47888— Textpattern 4.8.3 - Remote code execution

Quick assessment

Affected
The Textpattern Development Team Textpattern
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是Textpattern团队的一款简洁而又漂亮的Blog引擎。 Textpattern 4.8.3之前版本存在安全漏洞，该漏洞源于允许上传恶意PHP文件，可能导致远程代码执行。

CVSS 8.8 · High EPSS 0.70% · P51
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I. Basic Information for CVE-2021-47888

Vulnerability Information
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Vulnerability Title
Textpattern 4.8.3 - Remote code execution
Source: CVE Program / CVE List V5
Vulnerability Description
Textpattern versions prior to 4.8.3 contain an authenticated remote code execution vulnerability that allows logged-in users to upload malicious PHP files. Attackers can upload a PHP file with a shell command execution payload and execute arbitrary commands by accessing the uploaded file through a specific URL parameter.
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 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Textpattern是Textpattern团队的一款简洁而又漂亮的Blog引擎。 Textpattern 4.8.3之前版本存在安全漏洞，该漏洞源于允许上传恶意PHP文件，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
The Textpattern Development Team Textpattern 4.8.3 -

II. Public POCs for CVE-2021-47888

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III. Intelligence Information for CVE-2021-47888

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Vendor Advisories for CVE-2021-47888 (1)

Exploits & Public PoCs for CVE-2021-47888 (1)

IV. Related Vulnerabilities

Same product: Textpattern
Same weakness: CWE-434

V. Comments for CVE-2021-47888

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