CVE-2025-27715

Mattermost versions 9.11.x = 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them...

CVE-2025-27715 Auto-Enrollment of Team Admins into Private Channels without explicit consent

Mattermost versions 9.11.x = 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them...

CVE-2025-27715

Mattermost CVE-2025-27715 affects Mattermost Server 9.11.x

CVE-2025-27715 Auto-Enrollment of Team Admins into Private Channels without explicit consent

Mattermost versions 9.11.x = 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them...

CVE-2025-22449

Mattermost versions 9.11.x = 9.11.5 fail to enforce invite permissions, which allows team admins, with no permission to invite users to their team, to invite users by updating the "allowopeninvite" field via making their team public...

Mattermost Data Amplification vulnerability

Mattermost versions 10.1.x = 10.1.2, 10.0.x = 10.0.2, 9.11.x = 9.11.4, 9.5.x = 9.5.12 fail to limit the file size for slack import file uploads which allows a user to cause a DoS via zip bomb by importing data in a team they are a team admin...

CVE-2024-54682

Mattermost versions 10.1.x = 10.1.2, 10.0.x = 10.0.2, 9.11.x = 9.11.4, 9.5.x = 9.5.12 fail to limit the file size for slack import file uploads which allows a user to cause a DoS via zip bomb by importing data in a team they are a team admin...

BIT-MATTERMOST-2024-29221

Improper Access Control in Mattermost Server versions 9.5.x before 9.5.2, 9.4.x before 9.4.4, 9.3.x before 9.3.3, 8.1.x before 8.1.11 lacked proper access control in the /api/v4/users/me/teams endpoint allowing a team admin to get the invite ID of their team, thus allowing them to invite users,...

BIT-MATTERMOST-2024-40884

Mattermost versions 9.5.x = 9.5.7, 9.10.x = 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL...

GO-2024-3090 Mattermost allows team admin user without "Add Team Members" permission to disable invite URL in github.com/mattermost/mattermost-server

Mattermost allows team admin user without "Add Team Members" permission to disable invite URL in github.com/mattermost/mattermost-server...

CVE-2024-40884

Mattermost versions 9.5.x = 9.5.7, 9.10.x = 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL...

Mattermost allows team admin user without "Add Team Members" permission to disable invite URL

Mattermost versions 9.5.x = 9.5.7, 9.10.x = 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL...

GHSA-3J95-8G47-FPWH Mattermost allows team admin user without "Add Team Members" permission to disable invite URL

Mattermost versions 9.5.x = 9.5.7, 9.10.x = 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL...

CVE-2024-40884

Mattermost Server 9.5.x (up to 9.5.7) and 9.10.x (up to 9.10.0) are affected by an improper access control issue that allows a team admin user without the Add Team Members permission to disable the invite URL. The issue is caused by insufficient enforcement of permissions (no explicit access cont...

CVE-2024-40884 Unauthorized disabling of invite URL

Mattermost versions 9.5.x = 9.5.7, 9.10.x = 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL...

CVE-2024-40884 Unauthorized disabling of invite URL

Mattermost versions 9.5.x = 9.5.7, 9.10.x = 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL...

CVE-2024-40884 Unauthorized disabling of invite URL

Mattermost versions 9.5.x = 9.5.7, 9.10.x = 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL...

PT-2024-29128 · Mattermost · Mattermost

Name of the Vulnerable Software and Affected Versions: Mattermost versions 9.5.x through 9.5.7 Mattermost versions 9.10.x through 9.10.0 Description: The issue is related to improper permission enforcement, allowing a team admin user without the "Add Team Members" permission to disable the invite...

CVE-2024-4195

Mattermost versions 9.6.0, 9.5.x before 9.5.3, and 8.1.x before 8.1.12 fail to fully validate role changes, which allows an attacker authenticated as a team admin to promote guests to team admins via crafted HTTP requests...

CVE-2024-4198

Mattermost versions 9.6.0, 9.5.x before 9.5.3, and 8.1.x before 8.1.12 fail to fully validate role changes which allows an attacker authenticated as team admin to demote users to guest via crafted HTTP requests...