Vulnerability Information
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Vulnerability Title
Channel and Team Membership APIs inadvertently allow loss of Member privileges.
Vulnerability Description
Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate authorization for team scheme role modifications which allows Team Admins to demote Team Members to Guests via the PUT /api/v4/teams/team-id/members/user-id/schemeRoles API endpoint.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Vulnerability Type
授权机制不正确
Vulnerability Title
Mattermost 安全漏洞
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost 10.5.8及之前版本的10.5.x版本和9.11.17及之前版本的9.11.x版本存在安全漏洞，该漏洞源于未正确验证团队方案角色修改的授权，可能导致团队管理员将团队成员降级为访客。
CVSS Information
N/A
Vulnerability Type
N/A