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CVE-2024-47845— CSS sanitizer used incorrectly, and is easily bypassed

Quick assessment

Affected
The Wikimedia Foundation Mediawiki - CSS 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是美国维基媒体（MediaWiki）基金会的一套自由免费的基于网络的Wiki引擎。该产品可用于部署内部的知识管理和内容管理系统。 MediaWiki存在安全漏洞，该漏洞源于输出编码或转义不当，允许代码注入。

AI Predicted 8.2 Difficulty: Easy EPSS 0.38% · P31

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-47845

Vulnerability Information
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Vulnerability Title
CSS sanitizer used incorrectly, and is easily bypassed
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.
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:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对输出编码和转义不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
MediaWiki 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MediaWiki是美国维基媒体（MediaWiki）基金会的一套自由免费的基于网络的Wiki引擎。该产品可用于部署内部的知识管理和内容管理系统。 MediaWiki存在安全漏洞，该漏洞源于输出编码或转义不当，允许代码注入。
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 - CSS Extension 1.39.x ~ 1.39.9 -

II. Public POCs for CVE-2024-47845

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III. Intelligence Information for CVE-2024-47845

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Vendor Advisories for CVE-2024-47845 (1)

Other References for CVE-2024-47845 (1)

Same Patch Batch · The Wikimedia Foundation · 2024-10-05 · 6 CVEs total

CVE-2024-47847 Various XSSes found in Cargo
CVE-2024-47849 Backticks can allow the usage of not-allowed SQL functions
CVE-2024-47841 Path traversal when loading stylesheets
CVE-2024-47846 Special:DeleteCargoTable and Special:SwitchCargoTable have no CSRF protection
CVE-2024-47840 Stored XSS through sidebar in Apex skin

IV. Related Vulnerabilities

Same product: Mediawiki - CSS Extension
Same vendor: The Wikimedia Foundation
Same weakness: CWE-116

V. Comments for CVE-2024-47845

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