Mediawiki · Kbucket · CVE-2026-30917
**Name of the Vulnerable Software and Affected Versions**
Bucket versions prior to 2.1.1
**Description**
Bucket is a MediaWiki extension used to store and retrieve structured data on articles. A stored cross-site scripting (XSS) issue exists that allows malicious code to be inserted into any Bucket table field with a PAGE type. This code will execute when a user views the corresponding Bucket namespace page.
**Recommendations**
Update to Bucket version 2.1.1 or later.