CVE-2025-11261CWE-79

Stored i18n XSS exposed by security patch for T402077

published February 3, 2026

CVSS v4.0
0.0
EPSS
0%
Percentile
17.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
0.0 · NONE
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
EPSS
0.00263 · 17.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-03T00:25Z
EPSS history
Timeline
  • 03 FEB 00:25Z
    Stored i18n XSS exposed by security patch for T402077
    cvelistv5