CVE-2025-6926— Security Authentication Bypass in CentralAuth
Quick assessment
Affected
Wikimedia Foundation Mediawiki - CentralAuth Extension
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.
Wikimedia Mediawiki CentralAuth Extension是Wikimedia基金会的一个用于维基项目之间的整合和统一登录的扩展。 Wikimedia Mediawiki CentralAuth Extension 1.39.13之前版本、1.42.7之前版本和1.43.2之前版本存在安全漏洞，该漏洞源于认证不当，可能导致绕过认证。
Possible ATT&CK Techniques 1 AI
T1078 · Valid Accounts
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I. Basic Information for CVE-2025-6926
Vulnerability Information
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Vulnerability Title
Security Authentication Bypass in CentralAuth
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Authentication vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows : Bypass Authentication.This issue affects Mediawiki - CentralAuth Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Wikimedia Mediawiki CentralAuth Extension 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wikimedia Mediawiki CentralAuth Extension是Wikimedia基金会的一个用于维基项目之间的整合和统一登录的扩展。 Wikimedia Mediawiki CentralAuth Extension 1.39.13之前版本、1.42.7之前版本和1.43.2之前版本存在安全漏洞，该漏洞源于认证不当，可能导致绕过认证。
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 |
|---|---|---|---|---|
| Wikimedia Foundation | Mediawiki - CentralAuth Extension | 1.39.x ~ 1.39.13 | - |
|
II. Public POCs for CVE-2025-6926
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Wikimedia Foundation · 2025-07-03 · 6 CVEs total
| CVE-2025-53501 | Content Access Bypass in Scribunto | |
| CVE-2025-53489 | XSS in GoogleDocs4MW | |
| CVE-2025-53502 | HTML injection in FeaturedFeeds | |
| CVE-2025-53490 | Multiple XSS in CampaignEvents | |
| CVE-2025-53500 | Stored XSS in MassEditRegex |
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V. Comments for CVE-2025-6926
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