UpHeron
All vulnerabilities

Servers and applications

CVE-2021-42048

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.

Severity
Medium 4.8
Published
29 Sept 2022
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Every version up to 1.36.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-42048
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-42048