Vulnerability CVE-2021-42048
Published: 2022-09-29

Description:
An issue was discovered in the Growth extension in MediaWiki through 1.36.2. Any admin can add arbitrary JavaScript code to the Newcomer home page footer, which can be executed by viewers with zero edits.

 References:
https://gerrit.wikimedia.org/r/q/Iaa90a8976834d70caad592e9d1b18510318db537
https://phabricator.wikimedia.org/T289064
https://www.cve.org/CVERecord?id=CVE-2021-42048
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