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OpenAdvisories
High · 8.8 CVE-2026-30917 EUVD-2026-10426

Stored XSS on Bucket namespace pages

Published Mar 9, 2026 · Updated Mar 10, 2026 · Assigned by GitHub_M

Description

Bucket is a MediaWiki extension to store and retrieve structured data on articles. Prior to 2.1.1, a stored XSS can be inserted into any Bucket table field that has a PAGE type, which will execute whenever a user views that table's corresponding Bucket namespace page. This vulnerability is fixed in 2.1.1.

Affected products

VendorProductAffectedFixed
weirdgloop mediawiki-extensions-Bucket < 2.1.1 —

References