CVE-2025-67478

Wrong E-Mail address composition for usernames with a comma and Umlauts in it like "Döe, Jähn"

State: Published
Severity: 0.0 None
Published: Feb 3, 2026
Updated: Mar 2, 2026
Reserved: Dec 8, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
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	wikimedia-foundation

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
CheckUserWikimedia Foundation	before 1.39.14, 1.43.4, 1.44.1Affected

References

https://phabricator.wikimedia.org/T385403

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