CVE-2025-11794 MEDIUM

CVE-2025-11794: Password hash and MFA secret returned in user email verification endpoint

Vendor Mattermost
Product Mattermost
Weakness CWE-200 · Info exposure
Published November 14, 2025
Last update December 1, 2025
View on NVD All CVEs

CVSS base score

4.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/{user_id}/email/verify/member endpoint

Key dates

02Disclosure timeline

November 14, 2025 CVE published
December 1, 2025 Record updated