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
{ "versions": [ { "introduced": "10.5.0" }, { "fixed": "10.5.12" }, { "introduced": "10.11.0" }, { "fixed": "10.11.4" }, { "introduced": "10.12.0" }, { "fixed": "10.12.1" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-11794.json"