Vulnerabilities (CVE)

Filtered by vendor Mattermost Subscribe
Filtered by product Mattermost Server
Total 206 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2024-45835 1 Mattermost 1 Mattermost Server 2024-09-17 N/A 6.5 MEDIUM
Mattermost Desktop App versions <=5.8.0 fail to sufficiently configure Electron Fuses which allows an attacker to gather Chromium cookies or abuse other misconfigurations via remote/local access.
CVE-2024-39772 1 Mattermost 1 Mattermost Server 2024-09-17 N/A 5.3 MEDIUM
Mattermost Desktop App versions <=5.8.0 fail to safeguard screen capture functionality which allows an attacker to silently capture high-quality screenshots via JavaScript APIs.
CVE-2024-39837 1 Mattermost 1 Mattermost Server 2024-09-04 N/A 5.4 MEDIUM
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly restrict channel creation which allows a malicious remote to create arbitrary channels, when shared channels were enabled.
CVE-2024-39839 1 Mattermost 1 Mattermost Server 2024-09-04 N/A 4.3 MEDIUM
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.
CVE-2024-41144 1 Mattermost 1 Mattermost Server 2024-09-04 N/A 7.1 HIGH
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to properly validate synced posts, when shared channels are enabled,  which allows a malicious remote to create/update/delete arbitrary posts in arbitrary channels
CVE-2024-41162 1 Mattermost 1 Mattermost Server 2024-09-04 N/A 4.3 MEDIUM
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to disallow the modification of local channels by a remote, when shared channels are enabled, which allows a malicious remote to make an arbitrary local channel read-only.
CVE-2024-41926 1 Mattermost 1 Mattermost Server 2024-09-04 N/A 4.3 MEDIUM
Mattermost versions 9.9.x <= 9.9.0 and 9.5.x <= 9.5.6 fail to validate the source of sync messages and only allow the correct remote IDs, which allows a malicious remote to set arbitrary RemoteId values for synced users and therefore claim that a user was synced from another remote.
CVE-2024-1402 1 Mattermost 1 Mattermost Server 2024-05-30 N/A 4.3 MEDIUM
Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post. 
CVE-2023-49874 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 4.3 MEDIUM
Mattermost fails to check whether a user is a guest when updating the tasks of a private playbook run allowing a guest to update the tasks of a private playbook run if they know the run ID.
CVE-2023-45847 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 7.5 HIGH
Mattermost fails to to check the length when setting the title in a run checklist in Playbooks, allowing an attacker to send a specially crafted request and crash the Playbooks plugin
CVE-2023-50333 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 4.3 MEDIUM
Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names.
CVE-2023-48732 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 4.3 MEDIUM
Mattermost fails to scope the WebSocket response around notified users to a each user separately resulting in the WebSocket broadcasting the information about who was notified about a post to everyone else in the channel.
CVE-2024-24774 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 4.1 MEDIUM
Mattermost Jira Plugin handling subscriptions fails to check the security level of an incoming issue or limit it based on the user who created the subscription resulting in registered users on Jira being able to create webhooks that give them access to all Jira issues.
CVE-2023-6458 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 9.8 CRITICAL
Mattermost webapp fails to validate route parameters in/<TEAM_NAME>/channels/<CHANNEL_NAME> allowing an attacker to perform a client-side path traversal.
CVE-2023-6459 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 5.3 MEDIUM
Mattermost is grouping calls in the /metrics endpoint by id and reports that id in the response. Since this id is the channelID, the public /metrics endpoint is revealing channelIDs.
CVE-2023-49809 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 6.5 MEDIUM
Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. 
CVE-2023-7113 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 6.1 MEDIUM
Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.
CVE-2024-23319 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 3.5 LOW
Mattermost Jira Plugin fails to protect against logout CSRF allowing an attacker to post a specially crafted message that would disconnect a user's Jira connection in Mattermost only by viewing the message.
CVE-2023-6547 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 5.4 MEDIUM
Mattermost fails to validate team membership when a user attempts to access a playbook, allowing a user with permissions to a playbook but no permissions to the team the playbook is on to access and modify the playbook. This can happen if the user was once a member of the team, got permissions to the playbook and was then removed from the team. 
CVE-2024-24776 1 Mattermost 1 Mattermost Server 2024-02-28 N/A 4.3 MEDIUM
Mattermost fails to check the required permissions in the POST /api/v4/channels/stats/member_count API resulting in channel member counts being leaked to a user without permissions.