Filtered by vendor Mattermost
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Total
660 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-1628 | 1 Mattermost | 1 Mattermost Desktop | 2026-06-17 | N/A | 4.6 MEDIUM |
| Mattermost Desktop App versions <=5.13.3 fail to attach listeners restricting navigation to external sites within the Mattermost app which allows a malicious server to expose preload script functionality to untrusted servers via having a user open an external link in their Mattermost server. Mattermost Advisory ID: MMSA-2026-00596 | |||||
| CVE-2026-0999 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 5.4 MEDIUM |
| Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate login method restrictions which allows an authenticated user to bypass SSO-only login requirements via userID-based authentication. Mattermost Advisory ID: MMSA-2025-00548 | |||||
| CVE-2026-0998 | 1 Mattermost | 2 Mattermost Server, Zoom | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions <=1.11.0 fail to validate user identity and post ownership in the {{/api/v1/askPMI}} endpoint which allows unauthorized users to start Zoom meetings as any user and overwrite arbitrary posts via direct API calls with manipulated user IDs and post data.. Mattermost Advisory ID: MMSA-2025-00534 | |||||
| CVE-2026-0997 | 1 Mattermost | 2 Mattermost Server, Zoom | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions <=1.11.0 fail to validate the authenticated user when processing {{/plugins/zoom/api/v1/channel-preference}}, which allows any logged-in user to change Zoom meeting restrictions for arbitrary channels via crafted API requests.. Mattermost Advisory ID: MMSA-2025-00558 | |||||
| CVE-2025-8402 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.9 MEDIUM |
| Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import feature. | |||||
| CVE-2025-8285 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 4.0 MEDIUM |
| Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create channel subscription without proper access to the channel via API call to the create channel subscription endpoint. | |||||
| CVE-2025-8023 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 6.8 MEDIUM |
| Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.9.x <= 10.9.2 fails to sanitize path traversal sequences in template file destination paths, which allows a system admin to perform path traversal attacks via malicious path components, potentially enabling malicious file placement outside intended directories. | |||||
| CVE-2025-6465 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs. | |||||
| CVE-2025-6233 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 6.8 MEDIUM |
| Mattermost versions 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to sanitize input paths of file attachments in the bulk import JSONL file, which allows a system admin to read arbitrary system files via path traversal. | |||||
| CVE-2025-6227 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 2.2 LOW |
| Mattermost versions 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to negotiate a new token when accepting the invite which allows a user that intercepts both invite and password to send synchronization payloads to the server that originally created the invite via the REST API. | |||||
| CVE-2025-6226 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 6.5 MEDIUM |
| Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read posts in private channels they don't have access to via guessing the PendingPostID of recently created posts. | |||||
| CVE-2025-54525 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 7.5 HIGH |
| Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to create channel subscription endpoint with an invalid request body. | |||||
| CVE-2025-54478 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 7.2 HIGH |
| Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to edit channel subscriptions via API call to the edit channel subscription endpoint. | |||||
| CVE-2025-54463 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 5.9 MEDIUM |
| Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body. | |||||
| CVE-2025-54458 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 5.0 MEDIUM |
| Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to create a subscription for a Confluence space the user does not have access to via the create subscription endpoint. | |||||
| CVE-2025-53971 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 3.8 LOW |
| Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate authorization for team scheme role modifications which allows Team Admins to demote Team Members to Guests via the PUT /api/v4/teams/team-id/members/user-id/schemeRoles API endpoint. | |||||
| CVE-2025-53910 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 4.0 MEDIUM |
| Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint. | |||||
| CVE-2025-53857 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 3.7 LOW |
| Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint. | |||||
| CVE-2025-53514 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 5.9 MEDIUM |
| Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body. | |||||
| CVE-2025-52931 | 1 Mattermost | 1 Confluence | 2026-06-17 | N/A | 7.5 HIGH |
| Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to update channel subscription endpoint with an invalid request body. | |||||