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CVE-2026-22711— Stored XSS through system messages in WikiLove

Quick assessment

Affected
The Wikimedia Foundation Mediawiki - Wikilove 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 - WikiLove Extension是MediaWiki开源的一个托管维基爱心精神的扩展。 MediaWiki - WikiLove Extension 1.43.7版本、1.44.4版本和1.45.2版本存在安全漏洞，该漏洞源于对替代XSS语法中和不当，可能导致跨站脚本攻击。

AI Predicted 5.4 Difficulty: Easy EPSS 0.29% · P20
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I. Basic Information for CVE-2026-22711

Vulnerability Information
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Vulnerability Title
Stored XSS through system messages in WikiLove
Source: CVE Program / CVE List V5
Vulnerability Description
Improper neutralization of alternate XSS syntax vulnerability in The Wikimedia Foundation Mediawiki - Wikilove Extension allows Cross-Site Scripting (XSS).The issue has been remediated on the `master` branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
替代XSS语法转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
MediaWiki - WikiLove Extension 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MediaWiki - WikiLove Extension是MediaWiki开源的一个托管维基爱心精神的扩展。 MediaWiki - WikiLove Extension 1.43.7版本、1.44.4版本和1.45.2版本存在安全漏洞，该漏洞源于对替代XSS语法中和不当，可能导致跨站脚本攻击。
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 - Wikilove Extension - -

II. Public POCs for CVE-2026-22711

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III. Intelligence Information for CVE-2026-22711

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Same Patch Batch · The Wikimedia Foundation · 2026-04-07 · 6 CVEs total

CVE-2026-39937 Global vanishing does not completely remove user email
CVE-2026-39934 Growth Experiments ReassignMenteesJob runs as an infinite loop
CVE-2026-39933 Multiple XSS vulnerabilities in GlobalWatchlist
CVE-2026-39936 Stored XSS in Score due to usage of non-reserved data attributes
CVE-2026-39935 XSS-via-i18n in localised wiki names

IV. Related Vulnerabilities

Same product: Mediawiki - Wikilove Extension
Same vendor: The Wikimedia Foundation
Same weakness: CWE-87

V. Comments for CVE-2026-22711

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