CVE-2026-0669— Path Traversal vulnerability in CSS extension on certain web servers
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I. Basic Information for CVE-2026-0669
Vulnerability Information
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Vulnerability Title
Path Traversal vulnerability in CSS extension on certain web servers
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Wikimedia Foundation MediaWiki - CSS extension allows Path Traversal.This issue affects MediaWiki - CSS extension: 1.44, 1.43, 1.39.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
MediaWiki - CSS extension 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MediaWiki - CSS extension是MediaWiki开源的一个CSS扩展插件。 MediaWiki - CSS extension 1.44版本、1.43版本和1.39版本存在安全漏洞，该漏洞源于路径名限制不当，可能导致路径遍历。
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 - CSS extension | 1.44 | - |
II. Public POCs for CVE-2026-0669
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Wikimedia Foundation · 2026-01-07 · 3 CVEs total
| CVE-2026-0670 | Stored XSS through a system message and a user-provided parameter in ProofreadPage | |
| CVE-2026-0668 | VisualData extension: Regular Expression Denial of Service (ReDoS) via crafted user input |
IV. Related Vulnerabilities
Same vendor: Wikimedia Foundation
- CVE-2026-39837
Stored XSS through the dynamic table format in Cargo - CVE-2026-39841
Stored XSS through list fields on Cargo's page values and Sp - CVE-2026-39840
CSS injection in multiple Cargo display formats - CVE-2026-39839
Stored XSS through URLs in Cargo's map format - CVE-2026-39838
ProofreadPage improperly sanitizes multiline styles using Sa
Same weakness: CWE-22
- CVE-2026-8274
npitre cramfs-tools Directory cramfsck.c do_directory path t - CVE-2022-50956
WordPress Plugin amministrazione-aperta 3.7.3 Local File Rea - CVE-2026-8215
Industrial Application Software IAS Canias ERP RMI iasReques - CVE-2026-42605
AzuraCast: Path Traversal in `currentDirectory` Parameter En - CVE-2026-42574
apko dirFS has a symlink-following path traversal that allow
V. Comments for CVE-2026-0669
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