CVE-2021-42048
MEDIUMMediaWiki < 1.36.2 - Stored Cross-Site Scripting via Growth Extension Newcomer Home Page Footer
Title source: llmDescription
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 (2)
Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://phabricator.wikimedia.org/T289064
Patch, Vendor Advisory x_refsource_misc
https://gerrit.wikimedia.org/r/q/Iaa90a8976834d70caad592e9d1b18510318db537
Scores
CVSS v3
4.8
EPSS
0.0022
EPSS Percentile
44.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (1)
mediawiki/mediawiki
< 1.36.2
Published
Sep 29, 2022
Tracked Since
Feb 18, 2026