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I. Basic Information for CVE-2025-3446
Vulnerability Information

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Vulnerability Title
Members Without Guest Invite Permissions Can Add Guests to Teams
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to check the correct permissions which allows authenticated users who only have permission to invite non-guest users to a team to add guest users to that team via the API to add a single user to a team.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
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 10.6.1及之前的10.6.x版本、10.5.2及之前的10.5.x版本、10.4.4及之前的10.4.x版本和9.11.11及之前的9.11.x版本存在安全漏洞,该漏洞源于权限验证不足,可能导致通过API添加访客用户。
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
VendorProductAffected VersionsCPESubscribe
MattermostMattermost 10.6.0 ~ 10.6.1 -
II. Public POCs for CVE-2025-3446
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III. Intelligence Information for CVE-2025-3446
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IV. Related Vulnerabilities
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