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Servers and applications

CVE-2026-58034

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files modules/ext.CheckUser.TempAccounts/components/blockConnectedTempAccountsField.Vue. This issue affects CheckUser: from 1.46.0-rc.0 before 1.46.0.

Severity
Unrated
Published
1 Jul 2026
Last changed
9 Jul 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Version 1.46.0-rc0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-58034
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-58034