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CVE-2026-57309— Blind SQL Injection in Windu CMS

Quick assessment

Affected
JCD Windu 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.

JCD Windu CMS是波兰JCD公司的一款CMS内容管理系统软件。 JCD Windu CMS 4.1版本存在SQL注入漏洞，该漏洞源于远程未经身份验证的攻击者能够将SQL语法注入HTTP标头中的URL路径，导致SQL注入。

AI Predicted 9.1 Difficulty: Easy EPSS 0.53% · P44

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
JCD Windu CMS 4.1 affected
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I. Basic Information for CVE-2026-57309

Vulnerability Information
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Vulnerability Title
Blind SQL Injection in Windu CMS
Source: CVE Program / CVE List V5
Vulnerability Description
A Blind SQL injection vulnerability has been identified in Windu CMS. A remote unauthenticated attacker is able to inject SQL syntax into URL path in HTTP header resulting in Blind SQL Injection. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 4.1 but may also affect other versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA: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
JCD Windu CMS SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JCD Windu CMS是波兰JCD公司的一款CMS内容管理系统软件。 JCD Windu CMS 4.1版本存在SQL注入漏洞，该漏洞源于远程未经身份验证的攻击者能够将SQL语法注入HTTP标头中的URL路径，导致SQL注入。
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
JCD Windu CMS 4.1 -

II. Public POCs for CVE-2026-57309

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III. Intelligence Information for CVE-2026-57309

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Security Blog Posts for CVE-2026-57309 (1)

Same Patch Batch · JCD · 2026-07-20 · 3 CVEs total

CVE-2026-57311 5.3 MEDIUM Unrestricted Upload of File with Dangerous Type in Windu CMS
CVE-2026-57310 Weak password hashing in Windu CMS

IV. Related Vulnerabilities

Same product: Windu CMS
Same vendor: JCD
Same weakness: CWE-89

V. Comments for CVE-2026-57309

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