Vulnerabilities (CVE)

Filtered by vendor Mattermost Subscribe
Filtered by product Mattermost
Total 63 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-27263 1 Mattermost 1 Mattermost 2023-11-07 N/A 6.5 MEDIUM
A missing permissions check in the /plugins/playbooks/api/v0/runs API in Mattermost allows an attacker to list and view playbooks belonging to a team they are not a member of.
CVE-2023-1562 1 Mattermost 1 Mattermost 2023-11-07 N/A 4.3 MEDIUM
Mattermost fails to check the "Show Full Name" setting when rendering the result for the /plugins/focalboard/api/v2/users API call, allowing an attacker to learn the full name of a board owner.
CVE-2022-4045 1 Mattermost 1 Mattermost 2023-11-07 N/A 6.5 MEDIUM
A denial-of-service vulnerability in the Mattermost allows an authenticated user to crash the server via multiple requests to one of the API endpoints which could fetch a large amount of data. 
CVE-2022-4019 1 Mattermost 1 Mattermost 2023-11-07 N/A 6.5 MEDIUM
A denial-of-service vulnerability in the Mattermost Playbooks plugin allows an authenticated user to crash the server via multiple large requests to one of the Playbooks API endpoints.
CVE-2023-5522 1 Mattermost 1 Mattermost 2023-10-24 N/A 4.3 MEDIUM
Mattermost Mobile fails to limit the maximum number of Markdown elements in a post allowing an attacker to send a post with hundreds of emojis to a channel and freeze the mobile app of users when viewing that particular channel. 
CVE-2023-5160 1 Mattermost 1 Mattermost 2023-10-04 N/A 4.3 MEDIUM
Mattermost fails to check the Show Full Name option at the /api/v4/teams/TEAM_ID/top/team_members endpoint allowing a member to get the full name of another user even if the Show Full Name option was disabled
CVE-2023-5196 1 Mattermost 1 Mattermost 2023-10-03 N/A 6.5 MEDIUM
Mattermost fails to enforce character limits in all possible notification props allowing an attacker to send a really long value for a notification_prop resulting in the server consuming an abnormal quantity of computing resources and possibly becoming temporarily unavailable for its users.
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-2023-4106 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-2023-3615 1 Mattermost 1 Mattermost 2023-07-26 N/A 8.1 HIGH
Mattermost iOS app fails to properly validate the server certificate while initializing the TLS connection allowing a network attacker to intercept the WebSockets connection.
CVE-2022-2408 1 Mattermost 1 Mattermost 2023-06-30 4.0 MEDIUM 4.3 MEDIUM
The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.
CVE-2022-2406 1 Mattermost 1 Mattermost 2023-06-30 4.0 MEDIUM 6.5 MEDIUM
The legacy Slack import feature in Mattermost version 6.7.0 and earlier fails to properly limit the sizes of imported files, which allows an authenticated attacker to crash the server by importing large files via the Slack import REST API.
CVE-2023-2785 1 Mattermost 1 Mattermost 2023-06-28 N/A 4.3 MEDIUM
Mattermost fails to properly truncate the postgres error log message of a search query failure allowing an attacker to cause the creation of large log files which can result in Denial of Service
CVE-2023-2786 1 Mattermost 1 Mattermost 2023-06-26 N/A 4.3 MEDIUM
Mattermost fails to properly check the permissions when executing commands allowing a member with no permissions to post a message in a channel to actually post it by executing channel commands.