CVE-2025-6227— Invite token is used as part of the secure communication
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I. Basic Information for CVE-2025-6227
Vulnerability Information
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Vulnerability Title
Invite token is used as part of the secure communication
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mattermost versions 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to negotiate a new token when accepting the invite which allows a user that intercepts both invite and password to send synchronization payloads to the server that originally created the invite via the REST API.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的凭证保护机制
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 10.5.7及之前的10.5.x版本、9.11.16及之前的9.11.x版本存在安全漏洞，该漏洞源于接受邀请时未协商新令牌，可能导致拦截邀请和密码的用户通过REST API发送同步负载。
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 | 10.5.0 ~ 10.5.7 | - |
II. Public POCs for CVE-2025-6227
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Mattermost · 2025-07-18 · 3 CVEs total
| CVE-2025-6233 | 6.8 MEDIUM | Arbitrary file read by system admin via path traversal |
| CVE-2025-6226 | 6.5 MEDIUM | IDOR in CreatePost API allows for timeboxed message disclosure |
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- CVE-2026-3590
Race Condition in Guest Magic Link Authentication Allows Tok - CVE-2026-28741
CSRF Protection Bypass Allows Updating a User's Authenticati - CVE-2026-27769
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-522
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V. Comments for CVE-2025-6227
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