CVE-2026-58034
Stored XSS through a system message when blocking a temporary account that's related to other temporary accounts
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | wikimedia foundation |
| Product | checkuser |
| Published | Jul 1, 2026 |
| Last Updated | Jul 1, 2026 |
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Affected Versions
Wikimedia Foundation / CheckUser
1.46.0-rc.0 < 1.46.0