Filtered by vendor Mattermost Subscriptions
Filtered by product Mattermost Subscriptions
Total 181 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2025-3228 1 Mattermost 2 Mattermost, Mattermost Server 2025-07-08 4.3 Medium
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly retrieve requestorInfo from playbooks handler for guest users which allows an attacker access to the playbook run.
CVE-2025-46702 1 Mattermost 2 Mattermost, Mattermost Server 2025-07-08 5.4 Medium
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly enforce channel member management permissions when adding participants to playbook runs. This allows authenticated users with member-level permissions to bypass system admin restrictions and add or remove users to/from private channels via the playbook run participants feature, even when the 'Manage Members' permission has been explicitly removed. This can lead to unauthorized access to sensitive channel content and allow guest users to gain channel management privileges.
CVE-2025-47871 1 Mattermost 2 Mattermost, Mattermost Server 2025-07-08 4.3 Medium
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly validate channel membership when retrieving playbook run metadata, allowing authenticated users who are playbook members but not channel members to access sensitive information about linked private channels including channel name, display name, and participant count through the run metadata API endpoint.
CVE-2023-40703 1 Mattermost 1 Mattermost 2025-06-03 4.3 Medium
Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string. 
CVE-2023-35075 1 Mattermost 1 Mattermost 2025-06-03 3.1 Low
Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. 
CVE-2024-2450 1 Mattermost 2 Mattermost, Mattermost Server 2024-12-13 8.8 High
Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to correctly verify account ownership when switching from email to SAML authentication, allowing an authenticated attacker to take over other user accounts via a crafted switch request under specific conditions.
CVE-2021-37865 1 Mattermost 1 Mattermost 2024-12-06 4.3 Medium
Mattermost 6.2 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.
CVE-2021-37864 1 Mattermost 1 Mattermost 2024-12-06 2.6 Low
Mattermost 6.1 and earlier fails to sufficiently validate permissions while viewing archived channels, which allows authenticated users to view contents of archived channels even when this is denied by system administrators by directly accessing the APIs.
CVE-2022-0708 1 Mattermost 1 Mattermost 2024-12-06 4.3 Medium
Mattermost 6.3.0 and earlier fails to protect email addresses of the creator of the team via one of the APIs, which allows authenticated team members to access this information resulting in sensitive & private information disclosure.
CVE-2022-1003 1 Mattermost 1 Mattermost 2024-12-06 3.3 Low
One of the API in Mattermost version 6.3.0 and earlier fails to properly protect the permissions, which allows the system administrators to combine the two distinct privileges/capabilities in a way that allows them to override certain restricted configurations like EnableUploads.
CVE-2022-1002 1 Mattermost 1 Mattermost 2024-12-06 2 Low
Mattermost 6.3.0 and earlier fails to properly sanitize the HTML content in the email invitation sent to guest users, which allows registered users with special permissions to invite guest users to inject unescaped HTML content in the email invitations.
CVE-2022-2406 1 Mattermost 1 Mattermost 2024-12-06 4.3 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-2022-2408 1 Mattermost 1 Mattermost 2024-12-06 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-2022-4019 1 Mattermost 1 Mattermost 2024-12-06 4.3 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-2022-4044 1 Mattermost 1 Mattermost 2024-12-06 4.3 Medium
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
CVE-2022-4045 1 Mattermost 1 Mattermost 2024-12-06 3.1 Low
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-2023-27263 1 Mattermost 1 Mattermost 2024-12-06 4.3 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-2023-27264 1 Mattermost 1 Mattermost 2024-12-06 7.1 High
A missing permissions check in Mattermost Playbooks in Mattermost allows an attacker to modify a playbook via the /plugins/playbooks/api/v0/playbooks/[playbookID] API.
CVE-2023-1562 1 Mattermost 1 Mattermost 2024-12-06 3.5 Low
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-2023-2193 1 Mattermost 1 Mattermost 2024-12-06 6.5 Medium
Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.