---
id: CVE-2026-103049
title: >-
  Improper neutralization of input during web page generation ('cross-site
  scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo
  extension allows Reflected XSS.


  This issue affects Mediawiki - Cargo extension: before 1.46.1.
summary: >-
  Improper neutralization of input during web page generation ('cross-site
  scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo
  extension allows Reflected XSS.


  This issue affects Mediawiki - Cargo extension: before 1.46.1.
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: The Wikimedia Foundation
product: Mediawiki - Cargo extension
affected:
  - mediawiki_-_cargo_extension < 1.46.1
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T21:17:08.113'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103049'
references:
  - url: 'https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1310132'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
  - url: 'https://phabricator.wikimedia.org/T431567'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-103049.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-103049'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-103049'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T20:01:09.530452Z'
epss: 0.00155
epssPercentile: 0.04531
ingestedAt: '2026-09-29T23:52:50.546Z'
---

## Overview

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo extension allows Reflected XSS.

This issue affects Mediawiki - Cargo extension: before 1.46.1.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · updated 2026-09-30 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-103049.json)