---
id: CVE-2026-100237
title: >-
  Improper neutralization of input during web page generation ('cross-site
  scripting') vulnerability in The Wikimedia Foundation Mediawiki - Thanks
  Extension allows Stored XSS.


  This issue affects Mediawiki - Thanks Extension: from * befor…
summary: >-
  Improper neutralization of input during web page generation ('cross-site
  scripting') vulnerability in The Wikimedia Foundation Mediawiki - Thanks
  Extension allows Stored XSS.


  This issue affects Mediawiki - Thanks Extension: from * befor…
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 - Thanks Extension
affected:
  - mediawiki_-_thanks_extension < 1.43.10/1.45.5/1.46.1
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T18:17:06.953'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100237'
references:
  - url: 'https://gerrit.wikimedia.org/r/q/I6d563f9cdab25c07dcd0083f3af2126e0859d098'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
  - url: 'https://phabricator.wikimedia.org/T432424'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-25T17:05:16.608362Z'
ingestedAt: '2026-09-25T17:13:14.015Z'
---

## Overview

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

This issue affects Mediawiki - Thanks Extension: from * before 1.43.10/1.45.5/1.46.1.

## Remediation

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