CVE-2025-67478 — HIGH (8.8)

Q: What is CVE-2025-67478?

CVE-2025-67478 is a vulnerability with a CVSS score of 8.8 (HIGH). 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.

Q: How severe is CVE-2025-67478?

CVE-2025-67478 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-67478?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Checkuser.

Vulnerability 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.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mediawiki	Checkuser	>= 1.39.0, < 1.39.14

References

https://phabricator.wikimedia.org/T385403Broken Link

FAQ

What is CVE-2025-67478?

CVE-2025-67478 is a vulnerability with a CVSS score of 8.8 (HIGH). 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.

How severe is CVE-2025-67478?

CVE-2025-67478 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-67478?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Checkuser.