Filtered by vendor Mattermost Subscriptions
Filtered by product Mattermost Subscriptions
Total 166 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2025-20621 1 Mattermost 2 Mattermost, Mattermost Server 2025-10-01 6.5 Medium
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel.
CVE-2024-10241 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 4.3 Medium
Mattermost versions 9.5.x <= 9.5.9 fail to properly filter the channel data when ElasticSearch is enabled which allows a user to get private channel names by using cmd+K/ctrl+K.
CVE-2025-21088 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 6.5 Medium
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the frontend via crafted malicious input.
CVE-2025-20086 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 6.5 Medium
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post props which allows a malicious authenticated user to cause a crash via a malicious post.
CVE-2024-54682 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 6.5 Medium
Mattermost versions 10.1.x <= 10.1.2, 10.0.x <= 10.0.2, 9.11.x <= 9.11.4, 9.5.x <= 9.5.12 fail to limit the file size for slack import file uploads which allows a user to cause a DoS via zip bomb by importing data in a team they are a team admin.
CVE-2024-54083 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 6.5 Medium
Mattermost versions 10.1.x <= 10.1.2, 10.0.x <= 10.0.2, 9.11.x <= 9.11.4, 9.5.x <= 9.5.12 fail to properly validate the type of callProps which allows a user to cause a client side (webapp and mobile) DoS to users of particular channels, by sending a specially crafted post.
CVE-2024-5272 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 4.3 Medium
Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1, 8.1.x <= 8.1.12 fail to restrict the audience of the "custom_playbooks_playbook_run_updated" webhook event, which allows a guest on a channel with a playbook run linked to see all the details of the playbook run when the run is marked by finished.
CVE-2024-5270 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 4.3 Medium
Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to check if the email signup configuration option is enabled when a user requests to switch from SAML to Email. This allows the user to switch their authentication mail from SAML to email and possibly edit personal details that were otherwise non-editable and provided by the SAML provider.
CVE-2024-36255 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 5.7 Medium
Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to perform proper input validation on post actions which allows an attacker to run a playbook checklist task command as another user via creating and sharing a deceptive post action that unexpectedly runs a slash command in some arbitrary channel.
CVE-2024-36241 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 3.1 Low
Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to enforce proper access controls which allows user to view arbitrary post contents via the /playbook add slash command
CVE-2024-34152 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 4.3 Medium
Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to perform proper access control which allows a guest to get the metadata of a public playbook run that linked to the channel they are guest via sending an RHSRuns GraphQL query request to the server
CVE-2024-34029 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 4.3 Medium
Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1 and 8.1.x <= 8.1.12 fail to perform a proper authorization check in the /api/v4/groups/<group-id>/channels/<channel-id>/link endpoint which allows a user to learn the members of an AD/LDAP group that is linked to a team by adding the group to a channel, even if the user has no access to the team.
CVE-2024-32045 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 5.9 Medium
Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1, 8.1.x <= 8.1.12 fail to enforce proper access controls for channel and team membership when linking a playbook run to a channel which allows members to link their runs to private channels they were not members of.
CVE-2024-31859 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-30 4.3 Medium
Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin
CVE-2025-2564 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-29 4.3 Medium
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to properly enforce the 'Allow users to view/update archived channels' System Console setting, which allows authenticated users to view members and member information of archived channels even when this setting is disabled.
CVE-2025-35965 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-29 6.5 Medium
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to validate the uniqueness and quantity of task actions within the UpdateRunTaskActions GraphQL operation, which allows an attacker to create task items containing an excessive number of actions triggered by specific posts, overloading the server and leading to a denial-of-service (DoS) condition.
CVE-2025-3446 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-29 4.3 Medium
Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to check the correct permissions which allows authenticated users who only have permission to invite non-guest users to a team to add guest users to that team via the API to add a single user to a team.
CVE-2025-0503 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-29 3.1 Low
Mattermost versions 9.11.x <= 9.11.6 fail to filter out DMs from the deleted channels endpoint which allows an attacker to infer user IDs and other metadata from deleted DMs if someone had manually marked DMs as deleted in the database.
CVE-2025-22449 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-29 3.8 Low
Mattermost versions 9.11.x <= 9.11.5 fail to enforce invite permissions, which allows team admins, with no permission to invite users to their team, to invite users by updating the "allow_open_invite" field via making their team public.
CVE-2024-50052 1 Mattermost 2 Mattermost, Mattermost Server 2025-09-29 4.3 Medium
Mattermost versions 9.10.x <= 9.10.2, 9.11.x <= 9.11.1, 9.5.x <= 9.5.9 fail to check that the origin of the message in an integration action matches with the original post metadata which allows an authenticated user to delete an arbitrary post.