CVE-2026-100237: Stored i18n XSS in the Flow integration of Thanks

Published Sep 25, 2026
·
Updated

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.

Affected Software

1 affected component
Wikimedia Foundation MediaWiki Thanks Extension<1.43.10, <1.45.5, <1.46.1

Event History

Sep 25, 2026
CVE Published
via MITRE·04:47 PM
Data Sourced
via MITRE·04:47 PM
DescriptionWeakness
Data Sourced
via NVD·05:17 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Which deployments are affected?

MediaWiki installations using the Thanks extension are affected if they run a version before 1.43.10, 1.45.5, or 1.46.1.

2

What type of attacker interaction is involved?

The issue is a stored cross-site scripting vulnerability in the Flow integration of the Thanks extension. It involves insufficient neutralization of input when generating web pages.

Contact

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