CVE-2026-30917
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
Productmediawiki-extensions-Bucket
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| weirdgloop mediawiki-extensions-Bucket | < 2.1.1 | — |
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