Vulnerabilities > Mattermost > Medium

DATE CVE VULNERABILITY TITLE RISK
2023-06-16 CVE-2023-2788 Insufficient Session Expiration vulnerability in Mattermost
Mattermost fails to check if an admin user account active after an oauth2 flow is started, allowing an attacker with admin privileges to retain persistent access to Mattermost by obtaining an oauth2 access token while the attacker's account is deactivated.
network
low complexity
mattermost CWE-613
6.5
2023-06-16 CVE-2023-2791 Missing Authorization vulnerability in Mattermost
When creating a playbook run via the /dialog API, Mattermost fails to validate all parameters, allowing an authenticated attacker to edit an arbitrary channel post.
network
low complexity
mattermost CWE-862
4.3
2023-05-29 CVE-2023-2808 Unspecified vulnerability in Mattermost
Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link.
network
low complexity
mattermost
5.3
2023-05-02 CVE-2023-2000 Open Redirect vulnerability in Mattermost Desktop
Mattermost Desktop App fails to validate a mattermost server redirection and navigates to an arbitrary website
network
low complexity
mattermost CWE-601
5.4
2023-04-25 CVE-2023-2281 Unspecified vulnerability in Mattermost Server
When archiving a team, Mattermost fails to sanitize the related Websocket event sent to currently connected clients.
network
low complexity
mattermost
4.3
2023-03-31 CVE-2023-1774 Missing Authorization vulnerability in Mattermost Server
When processing an email invite to a private channel on a team, Mattermost fails to validate the inviter's permission to that channel, allowing an attacker to invite themselves to a private channel.
network
low complexity
mattermost CWE-862
5.4
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