---
id: CVE-2025-62697
title: >-
  Improper Neutralization of Special Elements in Output Used by a Downstream
  Component ('Injection') vulnerability in The Wikimedia Foundation Mediawiki -
  LanguageSelector Extension allows Code Injection.This issue affects Mediawiki
  - Lang…
summary: >-
  Improper Neutralization of Special Elements in Output Used by a Downstream
  Component ('Injection') vulnerability in The Wikimedia Foundation Mediawiki -
  LanguageSelector Extension allows Code Injection.This issue affects Mediawiki
  - Lang…
severity: none
cwe:
  - CWE-74
published: '2025-10-20'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T22:10:00.563'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-62697'
references:
  - url: 'https://gerrit.wikimedia.org/r/q/I338288e756de4e58a3f1f02a9c205b37f4927935'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
  - url: 'https://phabricator.wikimedia.org/T399724'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
tags:
  - nvd
epss: 0.00347
epssPercentile: 0.26172
ingestedAt: '2026-10-08T22:11:53.823Z'
---

## Overview

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in The Wikimedia Foundation Mediawiki - LanguageSelector Extension allows Code Injection.This issue affects Mediawiki - LanguageSelector Extension: from master before 1.39.

## Remediation

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