CVE-2026-58034

unknowncovered by 1 sourcefirst seen 2026-07-01

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.

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Exploitation outlook

Low exploitation risk0.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownCVE-2026-58034: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vu…nvd · 2026-07-01

External references

NVD record for CVE-2026-58034

CVE.org record

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