CVE-2026-30917

State: PUBLISHED · Published: 2026-03-09 · Updated: 2026-03-10 · Assigner: GitHub_M

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.

CWE

CWE-79 — CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected

weirdgloop / mediawiki-extensions-Bucket — v=< 2.1.1 [affected]

CVSS

4.0 score=8.8 severity=HIGH 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

References

https://github.com/weirdgloop/mediawiki-extensions-Bucket/security/advisories/GHSA-8jrp-37wc-5v7c x_refsource_CONFIRM
https://github.com/weirdgloop/mediawiki-extensions-Bucket/commit/46ec08876ba9064987f20e8f42690854202a73ff x_refsource_MISC
https://github.com/weirdgloop/mediawiki-extensions-Bucket/commit/cba9cf9c8751e9f3e6d559f44cadc39b84f7bff6 x_refsource_MISC

Source

cvelistV5-main/cves/2026/30xxx/CVE-2026-30917.json