CVE-2026-30917highCWE-79

CVE-2026-30917: high-severity vulnerability in weirdgloop mediawiki-extensions-Bucket

Stored XSS on Bucket namespace pages

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 0.3%
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.
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
Affected products
weirdgloop · mediawiki-extensions-Bucket
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