Vulnerabilities (CVE)

Filtered by vendor Mattermost Subscribe
Filtered by product Mattermost Server
Total 206 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-49607 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 7.5 HIGH
Mattermost fails to validate the type of the "reminder" body request parameter allowing an attacker to crash the Playbook Plugin when updating the status dialog.
CVE-2023-6727 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 4.3 MEDIUM
Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked. 
CVE-2023-46701 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 5.3 MEDIUM
Mattermost fails to perform authorization checks in the /plugins/playbooks/api/v0/runs/add-to-timeline-dialog endpoint of the Playbooks plugin allowing an attacker to get limited information about a post if they know the post ID
CVE-2023-45316 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 8.8 HIGH
Mattermost fails to validate if a relative path is passed in /plugins/playbooks/api/v0/telemetry/run/<telem_run_id> as a telemetry run ID, allowing an attacker to use a path traversal payload that points to a different endpoint leading to a CSRF attack.
CVE-2023-47858 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 4.3 MEDIUM
Mattermost fails to properly verify the permissions needed for viewing archived public channels,  allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/<team-id>/channels/deleted endpoint.
CVE-2023-5330 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 7.5 HIGH
Mattermost fails to enforce a limit for the size of the cache entry for OpenGraph data allowing an attacker to send a specially crafted request to the /api/v4/opengraph filling the cache and turning the server unavailable.
CVE-2023-3581 1 Mattermost 1 Mattermost Server 2024-02-28 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-2023-3591 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 8.2 HIGH
Mattermost fails to invalidate previously generated password reset tokens when a new reset token was created.
CVE-2023-3590 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 7.5 HIGH
Mattermost fails to delete card attachments in Boards, allowing an attacker to access deleted attachments.
CVE-2023-3614 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 3.3 LOW
Mattermost fails to properly validate a gif image file, allowing an attacker to consume a significant amount of server resources, making the server unresponsive for an extended period of time by linking to specially crafted image file.
CVE-2023-3584 1 Mattermost 1 Mattermost Server 2024-02-28 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-2023-3586 1 Mattermost 1 Mattermost Server 2024-02-28 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-2023-3613 1 Mattermost 1 Mattermost Server 2024-02-28 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.
CVE-2023-3582 1 Mattermost 1 Mattermost Server 2024-02-28 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-2023-5333 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 6.5 MEDIUM
Mattermost fails to deduplicate input IDs allowing a simple user to cause the application to consume excessive resources and possibly crash by sending a specially crafted request to /api/v4/users/ids with multiple identical IDs.
CVE-2023-4478 1 Mattermost 1 Mattermost Server 2024-02-28 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-2023-3593 1 Mattermost 1 Mattermost Server 2024-02-28 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-2023-3577 1 Mattermost 1 Mattermost Server 2024-02-28 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-2023-5331 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 5.3 MEDIUM
Mattermost fails to properly check the creator of an attached file when adding the file to a draft post, potentially exposing unauthorized file information.
CVE-2023-3587 1 Mattermost 1 Mattermost Server 2024-02-28 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.