CVE-2026-30917
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.
Published:Mar 9, 2026
Last Modified:Apr 18, 2026
EPS:Mar 9, 2026
EPSS Score:0.00064
CVSS Score:8.8
Affected Products
Vendor
Product
Action
Vendor
Weirdgloop
Product
Mediawiki-extensions-bucket
Weirdgloop
Mediawiki-extensions-bucket
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
