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CVE-2026-96873— Reflected XSS in CirrusSearch debug explain output

Quick assessment

Affected
The Wikimedia Foundation Mediawiki - CirrusSearch 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 MediaWiki - CirrusSearch 扩展中存在一个“网页生成期间输入 Neutralization 不当”（即跨站脚本，XSS）漏洞，允许发生反射型 XSS。 此问题影响 MediaWiki - CirrusSearch 扩展 1.46.0 及更早版本。

CVSS 5.5 · Medium EPSS 0.27% · P17

Affected Version Matrix 1

VendorProduct Version RangeStatus
The Wikimedia Foundation Mediawiki - CirrusSearch Extension ≤ 1.46.0 affected
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I. Basic Information for CVE-2026-96873

Vulnerability Information
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Vulnerability Title
Reflected XSS in CirrusSearch debug explain output
Source: CVE Program / CVE List V5
Vulnerability Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Mediawiki - CirrusSearch extension allows Reflected XSS. This issue affects Mediawiki - CirrusSearch extension through 1.46.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
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 - CirrusSearch Extension 0 ~ 1.46.0 -

II. Public POCs for CVE-2026-96873

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-96873

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Other References for CVE-2026-96873 (1)

Other References for CVE-2026-96873 (1)

IV. Related Vulnerabilities

Same product: Mediawiki - CirrusSearch Extension
Same vendor: The Wikimedia Foundation
Same weakness: CWE-79

V. Comments for CVE-2026-96873

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