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CVE-2025-53502— HTML injection in FeaturedFeeds

Quick assessment

Affected
Wikimedia Foundation Mediawiki - FeaturedFeeds 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 FeaturedFeeds Extension是Wikimedia基金会的一个用于维基项目的扩展。 Wikimedia Mediawiki FeaturedFeeds Extension 1.39.x、1.42.x和1.43.x版本存在安全漏洞，该漏洞源于输入验证不足，可能导致跨站脚本攻击。

AI Predicted 6.1 Difficulty: Easy EPSS 0.24% · P13
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I. Basic Information for CVE-2025-53502

Vulnerability Information
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Vulnerability Title
HTML injection in FeaturedFeeds
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Wikimedia Mediawiki FeaturedFeeds Extension 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wikimedia Mediawiki FeaturedFeeds Extension是Wikimedia基金会的一个用于维基项目的扩展。 Wikimedia Mediawiki FeaturedFeeds Extension 1.39.x、1.42.x和1.43.x版本存在安全漏洞，该漏洞源于输入验证不足，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
Wikimedia Foundation Mediawiki - FeaturedFeeds Extension 1.39.x -

II. Public POCs for CVE-2025-53502

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III. Intelligence Information for CVE-2025-53502

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Other References for CVE-2025-53502 (1)

Same Patch Batch · Wikimedia Foundation · 2025-07-03 · 6 CVEs total

CVE-2025-6926 Security Authentication Bypass in CentralAuth
CVE-2025-53501 Content Access Bypass in Scribunto
CVE-2025-53489 XSS in GoogleDocs4MW
CVE-2025-53490 Multiple XSS in CampaignEvents
CVE-2025-53500 Stored XSS in MassEditRegex

IV. Related Vulnerabilities

Same vendor: Wikimedia Foundation
Same weakness: CWE-20

V. Comments for CVE-2025-53502

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