Vulnerabilities (CVE)

Filtered by vendor Mattermost Subscribe
Total 288 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-5195 1 Mattermost 1 Mattermost 2023-10-03 N/A 5.4 MEDIUM
Mattermost fails to properly validate the permissions when soft deleting a team allowing a team member to soft delete other teams that they are not part of
CVE-2023-5194 1 Mattermost 1 Mattermost 2023-10-03 N/A 4.3 MEDIUM
Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager
CVE-2023-5193 1 Mattermost 1 Mattermost 2023-10-03 N/A 2.7 LOW
Mattermost fails to properly check permissions when retrieving a post allowing for a System Role with the permission to manage channels to read the posts of a DM conversation.
CVE-2023-5159 1 Mattermost 1 Mattermost 2023-10-03 N/A 2.7 LOW
Mattermost fails to properly verify the permissions when managing/updating a bot allowing a User Manager role with user edit permissions to manage/update bots.
CVE-2023-4478 1 Mattermost 1 Mattermost Server 2023-08-31 N/A 8.2 HIGH
Mattermost fails to restrict which parameters' values it takes from the request during signup allowing an attacker to register users as inactive, thus blocking them from later accessing Mattermost without the system admin activating their accounts.
CVE-2023-4106 1 Mattermost 1 Mattermost 2023-08-15 N/A 6.5 MEDIUM
Mattermost fails to check if the requesting user is a guest before performing different actions to public playbooks, resulting a guest being able to view, join, edit, export and archive public playbooks.
CVE-2023-4105 1 Mattermost 1 Mattermost 2023-08-15 N/A 4.3 MEDIUM
Mattermost fails to delete the attachments when deleting a message in a thread allowing a simple user to still be able to access and download the attachment of a deleted message
CVE-2023-4108 1 Mattermost 1 Mattermost 2023-08-15 N/A 7.5 HIGH
Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged
CVE-2023-4107 1 Mattermost 1 Mattermost 2023-08-15 N/A 6.5 MEDIUM
Mattermost fails to properly validate the requesting user permissions when updating a system admin, allowing a user manager to update a system admin's details such as email, first name and last name.
CVE-2023-3577 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 4.3 MEDIUM
Mattermost fails to properly restrict requests to localhost/intranet during the interactive dialog, which could allow an attacker to perform a limited blind SSRF.
CVE-2023-3584 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 3.1 LOW
Mattermost fails to properly check the authorization of POST /api/v4/teams when passing a team override scheme ID in the request, allowing an authenticated attacker with knowledge of a Team Override Scheme ID to create a new team with said team override scheme.
CVE-2023-3582 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 4.3 MEDIUM
Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to, 
CVE-2023-3581 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 8.1 HIGH
Mattermost fails to properly validate the origin of a websocket connection allowing a MITM attacker on Mattermost to access the websocket APIs.
CVE-2023-3587 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 2.7 LOW
Mattermost fails to properly show information in the UI, allowing a system admin to modify a board state allowing any user with a valid sharing link to join the board with editor access, without the UI showing the updated permissions.
CVE-2023-3586 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 5.4 MEDIUM
Mattermost fails to disable public Boards after the "Enable Publicly-Shared Boards" configuration option is disabled, resulting in previously-shared public Boards to remain accessible.
CVE-2023-3590 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 7.5 HIGH
Mattermost fails to delete card attachments in Boards, allowing an attacker to access deleted attachments.
CVE-2023-3591 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 8.2 HIGH
Mattermost fails to invalidate previously generated password reset tokens when a new reset token was created.
CVE-2023-3593 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 6.5 MEDIUM
Mattermost fails to properly validate markdown, allowing an attacker to crash the server via a specially crafted markdown input.
CVE-2023-3585 1 Mattermost 1 Mattermost Server 2023-07-27 N/A 4.3 MEDIUM
Mattermost Boards fail to properly validate a board link, allowing an attacker to crash a channel by posting a specially crafted boards link.
CVE-2023-3613 1 Mattermost 1 Mattermost Server 2023-07-26 N/A 3.5 LOW
Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default.