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CVE-2026-58519— Stored XSS through Cargo's map format

Quick assessment

Affected
The Wikimedia Foundation Mediawiki - Cargo 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 - Cargo Extension是美国Wikimedia基金会的一款MediaWiki的数据存储扩展插件。 Wikimedia Mediawiki - Cargo Extension 3.9.1之前版本存在跨站脚本漏洞，该漏洞源于对输入的中和不当，容易受到存储型跨站脚本攻击。

AI Predicted 6.1 Difficulty: Easy EPSS 0.24% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
The Wikimedia Foundation Mediawiki - Cargo Extension *< 3.9.1 affected
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I. Basic Information for CVE-2026-58519

Vulnerability Information
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Vulnerability Title
Stored XSS through Cargo's map format
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 - Cargo Extension allows Stored XSS. This issue affects Mediawiki - Cargo Extension: from * before 3.9.1.
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/E: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 - Cargo Extension 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wikimedia Mediawiki - Cargo Extension是美国Wikimedia基金会的一款MediaWiki的数据存储扩展插件。 Wikimedia Mediawiki - Cargo Extension 3.9.1之前版本存在跨站脚本漏洞，该漏洞源于对输入的中和不当，容易受到存储型跨站脚本攻击。
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 - Cargo Extension * ~ 3.9.1 -

II. Public POCs for CVE-2026-58519

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III. Intelligence Information for CVE-2026-58519

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Vendor Advisories for CVE-2026-58519 (1)

Other References for CVE-2026-58519 (1)

Same Patch Batch · The Wikimedia Foundation · 2026-07-01 · 7 CVEs total

CVE-2026-58520 UrlShortener defaults to ineffective validation open to third-party redirects
CVE-2026-58517 Blocked users can create and edit WikiLambda objects
CVE-2026-58518 Wikimedia Foundation Mediawiki - RedirectManager Extension 跨站请求伪造漏洞
CVE-2026-58521 SQLi in Cargo extension via year range filter
CVE-2026-14363 Cargo Extension: SQLi in Special:Drilldown
CVE-2026-14358 Stored XSS in Wikimedia Chart pie tooltip via Data:*.tab field title

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-58519

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