CVE-2025-11794— Password hash and MFA secret returned in user email verification endpoint
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I. Basic Information for CVE-2025-11794
Vulnerability Information
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Vulnerability Title
Password hash and MFA secret returned in user email verification endpoint
Source: NVD (National Vulnerability Database)
Vulnerability Description
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
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mattermost 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost 10.11.3及之前的10.11.x版本、10.5.11及之前的10.5.x版本和10.12.0及之前的10.12.x版本存在安全漏洞，该漏洞源于未清理用户数据，可能导致系统管理员访问密码哈希和MFA密钥。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mattermost | Mattermost | 10.11.0 ~ 10.11.3 | - |
II. Public POCs for CVE-2025-11794
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Mattermost · 2025-11-14 · 5 CVEs total
| CVE-2025-55070 | 6.5 MEDIUM | Lack of MFA enforcement in WebSocket connections |
| CVE-2025-55073 | 5.4 MEDIUM | MS Teams plugin OAuth allows editing arbitrary posts |
| CVE-2025-11776 | 4.3 MEDIUM | Guest user can discover archived public channels |
| CVE-2025-41436 | 3.1 LOW | Unauthorized access to archived channel content via threads interface |
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Unbounded Request Body Read in MS Teams Plugin {{/changes}} - CVE-2026-21388
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- CVE-2026-3590
Race Condition in Guest Magic Link Authentication Allows Tok - CVE-2026-28741
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Connected Workspaces: Malicious remote server can manipulate - CVE-2026-24661
Unbounded Request Body Read in MS Teams Plugin {{/changes}} - CVE-2026-21388
Unbounded Request Body Read in MS Teams Plugin {{/lifecycle}
Same weakness: CWE-200
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V. Comments for CVE-2025-11794
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