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CVE-2026-100237— Stored i18n XSS in the Flow integration of Thanks

Quick assessment

Affected
The Wikimedia Foundation Mediawiki - Thanks 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.

在生成网页过程中对输入内容的中立化处理不当（“跨站脚本”）漏洞，存在于维基媒体基金会（The Wikimedia Foundation）的 MediaWiki - Thanks 扩展中，该漏洞可导致存储型跨站脚本攻击（Stored XSS）。 此问题影响 MediaWiki - Thanks 扩展的以下版本：1.43.10 之前、1.45.5 之前以及 1.46.1 之前的版本。

AI Predicted 6.1 Difficulty: Easy EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-100237

Vulnerability Information
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Vulnerability Title
Stored i18n XSS in the Flow integration of Thanks
Source: CVE Program / CVE List V5
Vulnerability Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Thanks Extension allows Stored XSS. This issue affects Mediawiki - Thanks Extension: from * before 1.43.10/1.45.5/1.46.1.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
The Wikimedia Foundation Mediawiki - Thanks Extension * ~ 1.43.10/1.45.5/1.46.1 -

II. Public POCs for CVE-2026-100237

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III. Intelligence Information for CVE-2026-100237

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Other References for CVE-2026-100237 (2)

Same Patch Batch · The Wikimedia Foundation · 2026-09-25 · 7 CVEs total

CVE-2026-96879 6.9 MEDIUM "Checked by" label in page history should not be shown if the underlying review log entry
CVE-2026-96877 6.9 MEDIUM Reflected XSS through Cargo Drilldown full-text search
CVE-2026-96875 6.9 MEDIUM Reflected XSS in Cargo Drilldown hierarchy filters
CVE-2026-96876 6.9 MEDIUM Anonymous reflected XSS in CargoExport invalid-alias errors
CVE-2026-96878 6.9 MEDIUM Cargo Exhibit field alias allows stored XSS
CVE-2026-96874 2.3 LOW Stored XSS in Cargo Drilldown tab names

IV. Related Vulnerabilities

Same vendor: The Wikimedia Foundation
Same weakness: CWE-79

V. Comments for CVE-2026-100237

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