This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-103051 →
UBUNTU-CVE-2026-103051
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralNoti...
Original description
The description as published by the source.
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralNotice extension allows Stored XSS. This issue affects Mediawiki - CentralNotice extension: before 1.46.1, 1.45.5, 1.43.10.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Ubuntu:18.04:LTS
mediawiki
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS
mediawiki
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:22.04:LTS
mediawiki
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:24.04:LTS
mediawiki
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10
mediawiki
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
mediawiki
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- report ubuntu.com
- report cve.org
- report gerrit.wikimedia.org
- report phabricator.wikimedia.org