| CVE-2023-5967 | 中4.3 | Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin
| 06/11/2023 |
| CVE-2023-5196 | 中6.5 | 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.
| 29/09/2023 |
| CVE-2023-5195 | 中5.4 | 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
| 29/09/2023 |
| CVE-2023-5194 | 中4.3 | Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager
| 29/09/2023 |
| CVE-2023-5193 | 低2.7 | 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.
| 29/09/2023 |
| CVE-2023-5159 | 低2.7 | 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.
| 29/09/2023 |
| CVE-2023-4108 | 高7.5 | Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged
| 11/08/2023 |
| CVE-2023-4107 | 中6.5 | 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.
| 11/08/2023 |
| CVE-2023-4106 | 中6.5 | 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.
| 11/08/2023 |
| CVE-2023-4105 | 中4.3 | 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
| 11/08/2023 |
| CVE-2023-2783 | 中4.3 | Mattermost Apps Framework fails to verify that a secret provided in the incoming webhook request allowing an attacker to modify the contents of the post sent by the Apps.
| 16/06/2023 |
| CVE-2023-2515 | 高8.8 | Mattermost fails to restrict a user with permissions to edit other users and to create personal access tokens from elevating their privileges to system admin
| 12/05/2023 |
| CVE-2023-1777 | 中5.3 | Mattermost allows an attacker to request a preview of an existing message when creating a new message via the createPost API call, disclosing the contents of the linked message.
| 31/03/2023 |
| CVE-2023-1776 | 中5.4 | Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.
| 31/03/2023 |
| CVE-2023-1775 | 中6.5 | When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.
| 31/03/2023 |
| CVE-2023-1774 | 中5.4 | When processing an email invite to a private channel on a team, Mattermost fails to validate the inviter's permission to that channel, allowing an attacker to invite themselves to a private channel.
| 31/03/2023 |
| CVE-2022-3257 | 中6.5 | Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service. | 23/09/2022 |
| CVE-2022-2401 | 中6.5 | Unrestricted information disclosure of all users in Mattermost version 6.7.0 and earlier allows team members to access some sensitive information by directly accessing the APIs. | 14/07/2022 |
| CVE-2022-1385 | 中4.6 | Mattermost 6.4.x and earlier fails to properly invalidate pending email invitations when the action is performed from the system console, which allows accidentally invited users to join the workspace and access information from the public teams and channels. | 19/04/2022 |
| CVE-2022-1384 | 高8.8 | Mattermost version 6.4.x and earlier fails to properly check the plugin version when a plugin is installed from the Marketplace, which allows an authenticated and an authorized user to install and exploit an old plugin version from the Marketplace which might have known vulnerabilities. | 19/04/2022 |