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CVE-2026-57310— Weak password hashing 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版本存在加密问题漏洞，该漏洞源于使用基于MD5和SHA1的哈希算法结合静态盐值存储用户密码，可能导致获取密码哈希的攻击者解码用户凭据。

AI Predicted 5.9 Difficulty: Trivial EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 1

VendorProduct Version RangeStatus
JCD Windu CMS 4.1 affected
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I. Basic Information for CVE-2026-57310

Vulnerability Information
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Vulnerability Title
Weak password hashing in Windu CMS
Source: CVE Program / CVE List V5
Vulnerability Description
Windu CMS uses hashing algorithm based on MD5 and SHA1 with static salt to store user passwords. This allows an attacker who obtain password hash to decode user credentials. 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:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有不充分计算复杂性的口令哈希
Source: CVE Program / CVE List V5
Vulnerability Title
JCD Windu CMS 加密问题漏洞
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版本存在加密问题漏洞，该漏洞源于使用基于MD5和SHA1的哈希算法结合静态盐值存储用户密码，可能导致获取密码哈希的攻击者解码用户凭据。
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-2026-57310

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III. Intelligence Information for CVE-2026-57310

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Security Blog Posts for CVE-2026-57310 (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-2026-57309 Blind SQL Injection in Windu CMS

IV. Related Vulnerabilities

Same product: Windu CMS
Same vendor: JCD
Same weakness: CWE-916

V. Comments for CVE-2026-57310

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