---
id: CVE-2026-100378
title: >-
  Missing Authorization vulnerability in Wikimedia Foundation Mediawiki -
  Translate Extension allows Accessing Functionality Not Properly Constrained by
  ACLs.


  This issue affects Mediawiki - Translate Extension: from * before 1.46.1,
  1.45.…
summary: >-
  Missing Authorization vulnerability in Wikimedia Foundation Mediawiki -
  Translate Extension allows Accessing Functionality Not Properly Constrained by
  ACLs.


  This issue affects Mediawiki - Translate Extension: from * before 1.46.1,
  1.45.…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-862
vendor: Wikimedia Foundation
product: Mediawiki - Translate Extension
affected:
  - 'mediawiki_-_translate_extension < 1.46.1, 1.45.5, 1.43.10'
published: '2026-09-25'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T16:38:10.183'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100378'
references:
  - url: 'https://gerrit.wikimedia.org/r/q/I9b74c849b223f18955b42779f5ffbd1e051e415c'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
  - url: 'https://phabricator.wikimedia.org/T433070'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-26T22:42:38.694430Z'
cvssSource: cna
ingestedAt: '2026-09-25T21:19:40.140Z'
epss: 0.00265
epssPercentile: 0.18348
---

## Overview

Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - Translate Extension allows Accessing Functionality Not Properly Constrained by ACLs.

This issue affects Mediawiki - Translate Extension: from * before 1.46.1, 1.45.5, 1.43.10.

## Remediation

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