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.
History

Tue, 10 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Weirdgloop
Weirdgloop mediawiki-extensions-bucket
Vendors & Products Weirdgloop
Weirdgloop mediawiki-extensions-bucket
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 09 Mar 2026 23:15:00 +0000

Type Values Removed Values Added
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.
Title Stored XSS on Bucket namespace pages
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-03-09T22:50:20.879Z

Updated: 2026-03-10T13:52:52.786Z

Reserved: 2026-03-07T16:40:05.884Z

Link: CVE-2026-30917

cve-icon Vulnrichment

Updated: 2026-03-10T13:52:49.182Z

cve-icon NVD

Status : Received

Published: 2026-03-10T17:40:15.517

Modified: 2026-03-10T17:40:15.517

Link: CVE-2026-30917

cve-icon Redhat

No data.