CVE-2026-103046

Medium

Description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS. This issue affects MediaWiki - WikiLambda extension: before 1.46.1.

SeverityMedium

CVSS6.1

Exploit probability—

ProductMediawiki - WikiLambda Extension

PublishedSep 29, 2026

First seenSep 29, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

The Wikimedia Foundation Mediawiki - WikiLambda Extension1.46.1 or later

Vendor advisories

gerrit.wikimedia.org/r/c/1307827

Affected products

Product	Affected versions	Fixed in
The Wikimedia Foundation Mediawiki - WikiLambda Extension	v < 1.46.1	1.46.1

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