CVE-2025-62656— GlobalBlocking Special:GlobalBlockList vulnerable to message key stored XSS
Quick assessment
Affected
The Wikimedia Foundation MediaWiki GlobalBlocking 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.
Mediawiki GlobalBlocking Extension是美国维基媒体（Wikimedia）基金会的一个扩展。 Mediawiki GlobalBlocking Extension 1.43版本和1.44版本存在安全漏洞，该漏洞源于输入中和不当，可能导致存储型跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-62656
Vulnerability Information
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Vulnerability Title
GlobalBlocking Special:GlobalBlockList vulnerable to message key stored XSS
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:C/RE:L/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Mediawiki GlobalBlocking Extension 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mediawiki GlobalBlocking Extension是美国维基媒体（Wikimedia）基金会的一个扩展。 Mediawiki GlobalBlocking Extension 1.43版本和1.44版本存在安全漏洞，该漏洞源于输入中和不当，可能导致存储型跨站脚本攻击。
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 |
|---|---|---|---|---|
| The Wikimedia Foundation | MediaWiki GlobalBlocking extension | 1.43 | - |
|
II. Public POCs for CVE-2025-62656
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · The Wikimedia Foundation · 2025-10-20 · 7 CVEs total
| CVE-2025-62658 | SQL injection in WatchAnalytics through Special:ClearPendingReviews | |
| CVE-2025-62657 | Stored XSS through system messages in PageForms | |
| CVE-2025-62697 | Improperly sanitized style parameter in LanguageSelector | |
| CVE-2025-62698 | Stored XSS through system messages in ExternalGuidance | |
| CVE-2025-62700 | Stored XSS through a system message in MultiBoilerplate | |
| CVE-2025-62693 | Stored XSS through system messages in LastModified |
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V. Comments for CVE-2025-62656
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