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Medium · 6.1 CVE-2026-103046 EUVD-2026-89478GHSA-wgjv-5xcv-4jq5

WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML

Published Sep 29, 2026 · Updated Sep 30, 2026 · Assigned by wikimedia-foundation

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.

Affected products

VendorProductAffectedFixed
The Wikimedia Foundation Mediawiki - WikiLambda Extension < 1.46.1 1.46.1

References