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CVE-2026-103584: CWE-80 Improper neutralization of Script-Related HTML tags in a web page (basic XSS) in The Wikimedia Foundation MediaWiki CommonsMetadata extension

0
Low
VulnerabilityCVE-2026-103584cvecve-2026-103584cwe-80
Published: 09/30/2026 (09/30/2026, 22:14:27 UTC)
Source: CVE Database V5
Vendor/Project: The Wikimedia Foundation
Product: MediaWiki CommonsMetadata extension

Description

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki CommonsMetadata extension allows Cross-Site Scripting (XSS). This issue affects MediaWiki CommonsMetadata extension: 1.46, 1.45, and 1.43.

CVSS v4.0

Score 1.1low

Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
High
User Interaction
Passive
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
Low
Subsq. Confidentiality
Low
Subsq. Integrity
Low
Subsq. Availability
Low
Scope
N
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber

Affected software

The Wikimedia Foundation

MediaWiki CommonsMetadata extension

Affected versions
=1.46=1.45=1.43

Technical Details

Data Version
5.2
Assigner Short Name
wikimedia-foundation
Date Reserved
2026-09-30T22:09:46.952Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6abd8e512a4e24523db1ba90

Added to database: 09/30/2026, 22:33:53 UTC

Last updated: 09/30/2026, 22:33:53 UTC

Views: 1

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