CVE-2025-53480— CheckUser: Reflected Cross-Site Scripting (XSS) in Special:Investigate (Account information tab) via unsanitized i18n messages
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I. Basic Information for CVE-2025-53480
Vulnerability Information
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Vulnerability Title
CheckUser: Reflected Cross-Site Scripting (XSS) in Special:Investigate (Account information tab) via unsanitized i18n messages
Source: NVD (National Vulnerability Database)
Vulnerability Description
The CheckUser extension’s Special:Investigate page has a vulnerability in the Account information tab, where specific internationalized messages are rendered without proper escaping. Attackers can exploit this by appending ?uselang=x-xss to the URL, causing reflected XSS when the UI renders affected message keys. This issue affects Mediawiki - CheckUser 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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
Wikimedia Mediawiki - CheckUser Extension 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wikimedia Mediawiki - CheckUser Extension是Wikimedia基金会的一个查询IP地址的扩展。 Wikimedia Mediawiki - CheckUser Extension存在安全漏洞，该漏洞源于Account information tab中的特定国际化消息未正确转义，可能导致反射型跨站脚本攻击。以下版本受到影响：1.39.13版本之前的1.39.x版本、1.42.7版本之前的1.42.x版本和1.43.2版本之前的1.43.x版本。
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 - CheckUser extension | 1.39.x ~ 1.39.13 | - |
II. Public POCs for CVE-2025-53480
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Wikimedia Foundation · 2025-07-08 · 4 CVEs total
| CVE-2025-7362 | MsUpload: Stored Cross-Site Scripting (XSS) via unsanitized msu-continue system message | |
| CVE-2025-7363 | TitleIcon: Stored Cross-Site Scripting (XSS) via #titleicon_unicode parser function | |
| CVE-2025-53479 | CheckUser: Reflected Cross-Site Scripting (XSS) in Special:CheckUser via unsanitized inter |
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