CVE-2026-0670— Stored XSS through a system message and a user-provided parameter in ProofreadPage
Quick assessment
Affected
Wikimedia Foundation MediaWiki - ProofreadPage 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 - ProofreadPage Extension是MediaWiki开源的一个文档对照插件。 MediaWiki - ProofreadPage Extension 1.45版本、1.44版本、1.43版本和1.39版本存在安全漏洞，该漏洞源于输入中和不当，可能导致跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScript
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I. Basic Information for CVE-2026-0670
Vulnerability Information
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Vulnerability Title
Stored XSS through a system message and a user-provided parameter in ProofreadPage
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - ProofreadPage Extension: 1.45, 1.44, 1.43, 1.39.
Source: CVE Program / CVE List V5
CVSS Information
N/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
MediaWiki - ProofreadPage Extension 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MediaWiki - ProofreadPage Extension是MediaWiki开源的一个文档对照插件。 MediaWiki - ProofreadPage Extension 1.45版本、1.44版本、1.43版本和1.39版本存在安全漏洞，该漏洞源于输入中和不当，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 |
|---|---|---|---|---|
| Wikimedia Foundation | MediaWiki - ProofreadPage Extension | 1.45 | - |
|
II. Public POCs for CVE-2026-0670
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-0670 (2)
Same Patch Batch · Wikimedia Foundation · 2026-01-07 · 3 CVEs total
| CVE-2026-0669 | Path Traversal vulnerability in CSS extension on certain web servers | |
| CVE-2026-0668 | VisualData extension: Regular Expression Denial of Service (ReDoS) via crafted user input |
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Same weakness: CWE-79
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V. Comments for CVE-2026-0670
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