Total
501 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2024-1888 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost fails to check the "invite_guest" permission when inviting guests of other teams to a team, allowing a member with permissions to add other members but not to add guests to add a guest to a team as long as the guest was already a guest in another team of the server | |||||
| CVE-2024-1887 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export. | |||||
| CVE-2024-1402 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | 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-2024-12247 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.6 MEDIUM |
| Mattermost versions 9.7.x <= 9.7.5, 9.8.x <= 9.8.2 and 9.9.x <= 9.9.2 fail to properly propagate permission scheme updates across cluster nodes which allows a user to keep old permissions, even if the permission scheme has been updated. | |||||
| CVE-2024-11599 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 8.2 HIGH |
| Mattermost versions 10.0.x <= 10.0.1, 10.1.x <= 10.1.1, 9.11.x <= 9.11.3, 9.5.x <= 9.5.11 fail to properly validate email addresses which allows an unauthenticated user to bypass email domain restrictions via carefully crafted input on email registration. | |||||
| CVE-2024-10241 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 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-2023-7113 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 3.7 LOW |
| 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-2023-6727 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 3.1 LOW |
| Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked. | |||||
| CVE-2023-6547 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 3.7 LOW |
| 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-2023-6459 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | 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-2023-6458 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 7.1 HIGH |
| Mattermost webapp fails to validate route parameters in/<TEAM_NAME>/channels/<CHANNEL_NAME> allowing an attacker to perform a client-side path traversal. | |||||
| CVE-2023-5333 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost fails to deduplicate input IDs allowing a simple user to cause the application to consume excessive resources and possibly crash by sending a specially crafted request to /api/v4/users/ids with multiple identical IDs. | |||||
| CVE-2023-5331 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost fails to properly check the creator of an attached file when adding the file to a draft post, potentially exposing unauthorized file information. | |||||
| CVE-2023-5330 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost fails to enforce a limit for the size of the cache entry for OpenGraph data allowing an attacker to send a specially crafted request to the /api/v4/opengraph filling the cache and turning the server unavailable. | |||||
| CVE-2023-50333 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 3.7 LOW |
| 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-2023-4478 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost fails to restrict which parameters' values it takes from the request during signup allowing an attacker to register users as inactive, thus blocking them from later accessing Mattermost without the system admin activating their accounts. | |||||
| CVE-2023-49874 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | 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-2023-49809 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 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-2023-49607 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | N/A | 4.3 MEDIUM |
| Mattermost fails to validate the type of the "reminder" body request parameter allowing an attacker to crash the Playbook Plugin when updating the status dialog. | |||||
| CVE-2023-48732 | 1 Mattermost | 1 Mattermost Server | 2026-06-17 | 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. | |||||