Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2025-53479— CheckUser: Reflected Cross-Site Scripting (XSS) in Special:CheckUser via unsanitized internationalized message

Quick assessment

Affected
Wikimedia Foundation Mediawiki - CheckUser 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 - 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rev-deleted-user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。

AI Predicted 6.1 Difficulty: Easy EPSS 0.17% · P7

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-53479

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
CheckUser: Reflected Cross-Site Scripting (XSS) in Special:CheckUser via unsanitized internationalized message
Source: CVE Program / CVE List V5
Vulnerability Description
The CheckUser extension’s Special:CheckUser interface is vulnerable to reflected XSS via the rev-deleted-user message. This message is rendered without proper escaping, making it possible to inject JavaScript through the uselang=x-xss language override mechanism. This issue affects Mediawiki - CheckUser extension: 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
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
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rev-deleted-user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 1.42.x ~ 1.42.7 -

II. Public POCs for CVE-2025-53479

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-53479

请登录查看更多情报信息。

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-2025-53480 CheckUser: Reflected Cross-Site Scripting (XSS) in Special:Investigate (Account informatio

IV. Related Vulnerabilities

Same product: Mediawiki - CheckUser extension
Same vendor: Wikimedia Foundation
Same weakness: CWE-79

V. Comments for CVE-2025-53479

No comments yet

Leave a comment