Vulnerabilities > Mattermost > Medium

DATE CVE VULNERABILITY TITLE RISK
2023-03-31 CVE-2023-1775 Exposure of Resource to Wrong Sphere vulnerability in Mattermost Server
When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.
network
low complexity
mattermost CWE-668
6.5
2023-03-31 CVE-2023-1776 Cross-site Scripting vulnerability in Mattermost Server
Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.
network
low complexity
mattermost CWE-79
5.4
2023-03-31 CVE-2023-1777 Exposure of Resource to Wrong Sphere vulnerability in Mattermost Server
Mattermost allows an attacker to request a preview of an existing message when creating a new message via the createPost API call, disclosing the contents of the linked message.
network
low complexity
mattermost CWE-668
5.3
2023-03-22 CVE-2023-1562 Exposure of Resource to Wrong Sphere vulnerability in Mattermost
Mattermost fails to check the "Show Full Name" setting when rendering the result for the /plugins/focalboard/api/v2/users API call, allowing an attacker to learn the full name of a board owner.
network
low complexity
mattermost CWE-668
4.3
2023-03-15 CVE-2023-1421 Cross-site Scripting vulnerability in Mattermost Server
A reflected cross-site scripting vulnerability in the OAuth flow completion endpoints in Mattermost allows an attacker to send AJAX requests on behalf of the victim via sharing a crafted link with a malicious state parameter.
network
low complexity
mattermost CWE-79
6.1
2023-02-27 CVE-2023-27263 Missing Authorization vulnerability in Mattermost
A missing permissions check in the /plugins/playbooks/api/v0/runs API in Mattermost allows an attacker to list and view playbooks belonging to a team they are not a member of.
network
low complexity
mattermost CWE-862
6.5
2023-02-27 CVE-2023-27264 Missing Authorization vulnerability in Mattermost
A missing permissions check in Mattermost Playbooks in Mattermost allows an attacker to modify a playbook via the /plugins/playbooks/api/v0/playbooks/[playbookID] API.
network
low complexity
mattermost CWE-862
6.5
2022-11-23 CVE-2022-4045 Allocation of Resources Without Limits or Throttling vulnerability in Mattermost
A denial-of-service vulnerability in the Mattermost allows an authenticated user to crash the server via multiple requests to one of the API endpoints which could fetch a large amount of data. 
network
low complexity
mattermost CWE-770
6.5
2022-11-23 CVE-2022-4019 Allocation of Resources Without Limits or Throttling vulnerability in Mattermost
A denial-of-service vulnerability in the Mattermost Playbooks plugin allows an authenticated user to crash the server via multiple large requests to one of the Playbooks API endpoints.
network
low complexity
mattermost CWE-770
6.5
2022-11-23 CVE-2022-4044 Allocation of Resources Without Limits or Throttling vulnerability in Mattermost
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
network
low complexity
mattermost CWE-770
6.5