CVE-2026-58034

Stored XSS through a system message when blocking a temporary account that's related to other temporary accounts

CVSS 0 NONEEPSS 0.2%CWE-79

Vexday Risk Score

3Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 0EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

01 jul 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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.

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N

Productos afectados

Wikimedia Foundation · CheckUser

Referencias

https://phabricator.wikimedia.org/T428820