Filtered by vendor Mattermost
Subscriptions
Filtered by product Mattermost Server
Subscriptions
Total
354 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2025-13352 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-12-29 | 3 Low |
| Mattermost versions 10.11.x <= 10.11.6 and Mattermost GitHub plugin versions <=2.4.0 fail to validate plugin bot identity in reaction forwarding which allows attackers to hijack the GitHub reaction feature to make users add reactions to arbitrary GitHub objects via crafted notification posts. | ||||
| CVE-2025-14273 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-12-29 | 7.2 High |
| Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 with the Jira plugin enabled and Mattermost Jira plugin versions <=4.4.0 fail to enforce authentication and issue-key path restrictions in the Jira plugin, which allows an unauthenticated attacker who knows a valid user ID to issue authenticated GET and POST requests to the Jira server via crafted plugin payloads that spoof the user ID and inject arbitrary issue key paths. Mattermost Advisory ID: MMSA-2025-00555 | ||||
| CVE-2025-13324 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-12-29 | 3.7 Low |
| Mattermost versions 10.11.x <= 10.11.5, 11.0.x <= 11.0.4, 10.12.x <= 10.12.2 fail to invalidate remote cluster invite tokens when using the legacy (version 1) protocol or when the confirming party does not provide a refreshed token, which allows an attacker who has obtained an invite token to authenticate as the remote cluster and perform limited actions on shared channels even after the invitation has been legitimately confirmed. | ||||
| CVE-2025-12689 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-12-29 | 6.5 Medium |
| Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request. | ||||
| CVE-2025-12756 | 1 Mattermost | 3 Mattermost, Mattermost Boards, Mattermost Server | 2025-12-05 | 4.3 Medium |
| Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate user permissions when deleting comments in Boards, which allows an authenticated user with the editor role to delete comments created by other users. | ||||
| CVE-2025-13870 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-12-03 | 3.1 Low |
| Mattermost versions 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate the user permission when accessing the files and subscribing to the block in Boards, which allows an authenticated user to access other board files and was able to subscribe to the block from other boards that the user does not have access to | ||||
| CVE-2025-12559 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-12-03 | 4.3 Medium |
| Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to sanitize team email addresses to be visible only to Team Admins, which allows any authenticated user to view team email addresses via the GET /api/v4/channels/{channel_id}/common_teams endpoint | ||||
| CVE-2025-11794 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-12-01 | 4.9 Medium |
| Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/{user_id}/email/verify/member endpoint | ||||
| CVE-2025-55074 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-11-25 | 3 Low |
| Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when users had read channels via channel member objects | ||||
| CVE-2025-55073 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-11-19 | 5.4 Medium |
| Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to validate the relationship between the post being updated and the MSTeams plugin OAuth flow which allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL. | ||||
| CVE-2025-11777 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-11-17 | 3.1 Low |
| Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to properly validate team membership permissions in the Add Channel Member API which allows users from one team to access user metadata and channel membership information from other teams via the API endpoint | ||||
| CVE-2025-11776 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-11-17 | 4.3 Medium |
| Mattermost versions <11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint | ||||
| CVE-2025-41436 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-11-17 | 3.1 Low |
| Mattermost versions <11.0 fail to properly enforce the "Allow users to view archived channels" setting which allows regular users to access archived channel content and files via the "Open in Channel" functionality from followed threads | ||||
| CVE-2025-55070 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-11-17 | 6.5 Medium |
| Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events | ||||
| CVE-2025-47700 | 1 Mattermost | 3 Mattermost, Mattermost Server, Server | 2025-10-29 | 3.5 Low |
| Mattermost Server versions 10.5.x <= 10.5.9 utilizing the Agents plugin fail to reject empty request bodies which allows users to trick users into clicking malicious links via post actions | ||||
| CVE-2025-41443 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-10-29 | 4.3 Medium |
| Mattermost versions 10.5.x <= 10.5.12, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when accessing channel information which allows guest users to discover active public channels and their metadata via the `/api/v4/teams/{team_id}/channels/ids` endpoint | ||||
| CVE-2025-10545 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-10-21 | 3.1 Low |
| Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when adding channel members which allows guest users to add any team members to their private channels via the `/api/v4/channels/{channel_id}/members` endpoint | ||||
| CVE-2025-41410 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-10-21 | 5.4 Medium |
| Mattermost versions 10.10.x <= 10.10.2, 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to validate email ownership during Slack import process which allows attackers to create verified user accounts with arbitrary email domains via malicious Slack import data to bypass email-based team access restrictions | ||||
| CVE-2025-54499 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-10-21 | 3.1 Low |
| Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to use constant-time comparison for sensitive string comparisons which allows attackers to exploit timing oracles to perform byte-by-byte brute force attacks via response time analysis on Cloud API keys and OAuth client secrets | ||||
| CVE-2025-3230 | 1 Mattermost | 2 Mattermost, Mattermost Server | 2025-10-15 | 5.4 Medium |
| Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via continued usage of previously issued tokens. | ||||