CVE-2025-67478

0.0 infoEPSS 0.3%

Info (0.0) in mediawiki checkuser. EPSS 0.3% chance of exploitation in the next 30 days.

Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files includes/Mail/UserMailer.Php. This issue affects CheckUser: from * before 1.39.14, 1.43.4, 1.44.1.

Severity

CVSS 4.0

0.0 none

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

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
Published: 2026-02-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mediawiki:checkuser

References

https://phabricator.wikimedia.org/T385403

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