Vulnerabilities > Mattermost > Mattermost Server > Medium
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-07-17 | CVE-2023-3582 | Incorrect Authorization vulnerability in Mattermost Server Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to, | 4.3 |
| 2023-07-17 | CVE-2023-3585 | Resource Exhaustion vulnerability in Mattermost Server Mattermost Boards fail to properly validate a board link, allowing an attacker to crash a channel by posting a specially crafted boards link. | 4.3 |
| 2023-07-17 | CVE-2023-3586 | Incorrect Authorization vulnerability in Mattermost Server Mattermost fails to disable public Boards after the "Enable Publicly-Shared Boards" configuration option is disabled, resulting in previously-shared public Boards to remain accessible. | 5.4 |
| 2023-07-17 | CVE-2023-3593 | Unspecified vulnerability in Mattermost Server Mattermost fails to properly validate markdown, allowing an attacker to crash the server via a specially crafted markdown input. | 6.5 |
| 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. | 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. | 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. | 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. | 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. | 5.3 |
| 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. | 6.1 |