CVE-2021-42048

medium

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://phabricator.wikimedia.org/T289064

https://gerrit.wikimedia.org/r/q/Iaa90a8976834d70caad592e9d1b18510318db537

Details

Source: Mitre, NVD

Published: 2022-09-29

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:M/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 4.8

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N