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CVE-2021-47918— Simple CMS 2.1 SQL Injection Vulnerability via Users Module

Quick assessment

Affected
Simplephpscripts Simple 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.

Simple CMS是Simple PHP Scripts开源的一个内容管理系统。 Simple CMS 2.1版本存在SQL注入漏洞，该漏洞源于admin.php文件中未验证的输入参数，可能导致SQL注入攻击。

CVSS 8.1 · High EPSS 0.57% · P46
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I. Basic Information for CVE-2021-47918

Vulnerability Information
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Vulnerability Title
Simple CMS 2.1 SQL Injection Vulnerability via Users Module
Source: CVE Program / CVE List V5
Vulnerability Description
Simple CMS 2.1 contains a remote SQL injection vulnerability that allows privileged attackers to inject unfiltered SQL commands in the users module. Attackers can exploit unvalidated input parameters in the admin.php file to compromise the database management system and web application.
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:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Simple CMS SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Simple CMS是Simple PHP Scripts开源的一个内容管理系统。 Simple CMS 2.1版本存在SQL注入漏洞，该漏洞源于admin.php文件中未验证的输入参数，可能导致SQL注入攻击。
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
Simplephpscripts Simple CMS 2.1 -

II. Public POCs for CVE-2021-47918

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III. Intelligence Information for CVE-2021-47918

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Same Patch Batch · Simplephpscripts · 2026-02-01 · 3 CVEs total

CVE-2021-47919 6.4 MEDIUM Simple CMS 2.1 Non-Persistent Cross-Site Scripting via Preview Parameter
CVE-2021-47917 6.4 MEDIUM Simple CMS 2.1 Persistent Cross-Site Scripting via User Input Parameters

IV. Related Vulnerabilities

Same product: Simple CMS
Same vendor: Simplephpscripts
Same weakness: CWE-89

V. Comments for CVE-2021-47918

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