---
id: CVE-2026-103585
title: >-
  Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
  vulnerability in The Wikimedia Foundation MediaWiki MediaSearch extension
  allows Cross-Site Scripting (XSS).


  This issue affects MediaWiki MediaSearch extensio…
summary: >-
  Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
  vulnerability in The Wikimedia Foundation MediaWiki MediaSearch extension
  allows Cross-Site Scripting (XSS).


  This issue affects MediaWiki MediaSearch extensio…
severity: low
cvss: 1.2
cvssVector: >-
  CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
cwe:
  - CWE-80
vendor: The Wikimedia Foundation
product: MediaWiki MediaSearch extension
affected:
  - mediawiki_mediasearch_extension 1.46
  - mediawiki_mediasearch_extension 1.45
  - mediawiki_mediasearch_extension 1.43
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:16:57.890'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103585'
references:
  - url: 'https://gerrit.wikimedia.org/r/q/I79e8200289bd120c3c971ba830776eaae779bb99'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
  - url: 'https://phabricator.wikimedia.org/T435999'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-09-30T22:27:27.821Z'
---

## Overview

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki MediaSearch extension allows Cross-Site Scripting (XSS).

This issue affects MediaWiki MediaSearch extension: 1.46, 1.45, and 1.43.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.