Missing Authentication for Critical Function

Overview Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the POST /api/v4/teams/:teamId/restore endpoint. An attacker can access sensitive team invite information by sending crafted requests to this endpoint without proper privileges. Remediati...

GHSA-4276-CM8C-788H Mattermost Fails to Properly Validate Team Role Modification

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...

Mattermost Does Not Sanitize the Team Invite ID

Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 9.11.x = 9.11.17, 10.9.x = 10.9.2 fail to sanitize the team invite ID in the POST /api/v4/teams/:teamId/restore endpoint which allows an team admin with no member invite privileges to get the team’s invite id...

Mattermost Fails to Properly Validate Team Role Modification

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...

GHSA-QJ47-W9F2-QG44 Mattermost Does Not Sanitize the Team Invite ID

Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 9.11.x = 9.11.17, 10.9.x = 10.9.2 fail to sanitize the team invite ID in the POST /api/v4/teams/:teamId/restore endpoint which allows an team admin with no member invite privileges to get the team’s invite id...

CVE-2025-53971

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...

CVE-2025-47870

Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 9.11.x = 9.11.17, 10.9.x = 10.9.2 fail to sanitize the team invite ID in the POST /api/v4/teams/:teamId/restore endpoint which allows an team admin with no member invite privileges to get the team’s invite id...

CVE-2025-47870 Team invite ID leaked to team admin with no member invite privileges

Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 9.11.x = 9.11.17, 10.9.x = 10.9.2 fail to sanitize the team invite ID in the POST /api/v4/teams/:teamId/restore endpoint which allows an team admin with no member invite privileges to get the team’s invite id...

CVE-2025-47870 Team invite ID leaked to team admin with no member invite privileges

Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 9.11.x = 9.11.17, 10.9.x = 10.9.2 fail to sanitize the team invite ID in the POST /api/v4/teams/:teamId/restore endpoint which allows an team admin with no member invite privileges to get the team’s invite id...

CVE-2025-47870

Mattermost Server contains a vulnerability where the team invite ID is not sanitized in the POST /api/v4/teams/:teamId/restore endpoint. Affected versions include Mattermost Server 9.11.x <= 9.11.17, 10.5.x <= 10.5.8, 10.8.x <= 10.8.3, and 10.9.x

CVE-2025-47870 Team invite ID leaked to team admin with no member invite privileges

Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 9.11.x = 9.11.17, 10.9.x = 10.9.2 fail to sanitize the team invite ID in the POST /api/v4/teams/:teamId/restore endpoint which allows an team admin with no member invite privileges to get the team’s invite id...

CVE-2025-53971 Channel and Team Membership APIs inadvertently allow loss of Member privileges.

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...

CVE-2025-53971 Channel and Team Membership APIs inadvertently allow loss of Member privileges.

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...

CVE-2025-53971 Channel and Team Membership APIs inadvertently allow loss of Member privileges.

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...

CVE-2025-53971

Mattermost Server vulnerability CVE-2025-53971 affects versions 10.5.x ≤ 10.5.8 and 9.11.x ≤ 9.11.17. The issue arises from improper authorization validation for team scheme role modifications, allowing Team Admins to demote Team Members to Guests via PUT /api/v4/teams/{team-id}/members/{user-id}...

PT-2025-34200 · Mattermost · Mattermost

Name of the Vulnerable Software and Affected Versions: Mattermost versions 10.5.x through 10.5.8 Mattermost versions 9.11.x through 9.11.17 Mattermost versions 10.8.x through 10.8.3 Mattermost versions 10.9.x through 10.9.2 Description: The Mattermost application fails to sanitize the team invite...

Mattermost 安全漏洞

Mattermost is an open source collaboration platform from Mattermost, Inc. in the United States. A security vulnerability exists in Mattermost that stems from an uncleaned Team Invitation ID, which could lead to the acquisition of a Team Invitation ID.The following versions are affected: 10.8.3 an...

Mattermost 安全漏洞

Mattermost is an open source collaboration platform from Mattermost, Inc. in the United States. A security vulnerability exists in Mattermost version 10.5.8 and prior versions 10.5.x and version 9.11.17 and prior versions 9.11.x, which stems from failure to properly validate authorization for tea...

PT-2025-34197 · Mattermost · Mattermost

Name of the Vulnerable Software and Affected Versions: Mattermost versions 10.5.x through 10.5.8 Mattermost versions 9.11.x through 9.11.17 Description: Mattermost fails to properly validate authorization for team scheme role modifications. This allows Team Admins to demote Team Members to Guests...

Red Teaming Methodology for Design Obfuscation

The main goal of design obfuscation schemes is to protect sensitive design details from untrusted parties in the VLSI supply chain, including but not limited to off-shore foundries and untrusted end users. In this work, we provide a systematic red teaming approach to evaluate the security of desi...