---
id: CVE-2026-103442
title: >-
  External control of system or configuration setting vulnerability in The
  Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.


  This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.
summary: >-
  External control of system or configuration setting vulnerability in The
  Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.


  This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.
severity: high
cvss: 7.2
cvssVector: >-
  CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
cwe:
  - CWE-15
vendor: The Wikimedia Foundation
product: MediaWiki CentralAuth extension
affected:
  - mediawiki_centralauth_extension 1.46
  - mediawiki_centralauth_extension 1.45
  - mediawiki_centralauth_extension 1.43
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T16:27:40.143'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103442'
references:
  - url: 'https://gerrit.wikimedia.org/r/q/I9c59e5c3f217c1eaa02934a076604049bac2b025'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
  - url: 'https://phabricator.wikimedia.org/T435624'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-09-30T17:13:20.822Z'
---

## Overview

External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.

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

## Remediation

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