CVE-2025-11261

MEDIUM

MediaWiki < 1.39.15, 1.43.5, 1.44.2 - Cross-Site Scripting in mediawiki.Language.Js

Title source: llm
STIX 2.1

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Language/mediawiki.Language.Js. This issue affects MediaWiki: from * before 1.39.15, 1.43.5, 1.44.2.

References (2)

Core 2

Scores

CVSS v3 6.1
EPSS 0.0001
EPSS Percentile 0.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (2)
mediawiki/mediawiki < 1.39.15
Wikimedia Foundation/MediaWiki < 1.39.15, 1.43.5, 1.44.2
Published Feb 03, 2026
Tracked Since Feb 18, 2026