Vulnerabilities > Mattermost > Mattermost Server > 5.15.3
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 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 |
| 2023-02-27 | CVE-2023-27265 | Exposure of Resource to Wrong Sphere vulnerability in Mattermost Server Mattermost fails to honor the ShowEmailAddress setting when constructing a response to the "Regenerate Invite Id" API endpoint, allowing an attacker with team admin privileges to learn the team owner's email address in the response. | 2.7 |
| 2023-02-27 | CVE-2023-27266 | Information Exposure vulnerability in Mattermost Server Mattermost fails to honor the ShowEmailAddress setting when constructing a response to the /api/v4/users/me/teams API endpoint, allowing an attacker with team admin privileges to learn the team owner's email address in the response. | 2.7 |
| 2022-09-23 | CVE-2022-3257 | Unrestricted Upload of File with Dangerous Type vulnerability in Mattermost Server Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service. | 6.5 |
| 2022-09-09 | CVE-2022-3147 | Allocation of Resources Without Limits or Throttling vulnerability in Mattermost Server Mattermost version 7.0.x and earlier fails to sufficiently limit the in-memory sizes of concurrently uploaded JPEG images, which allows authenticated users to cause resource exhaustion on specific system configurations, resulting in server-side Denial of Service. | 6.5 |
| 2022-07-14 | CVE-2022-2401 | Information Exposure vulnerability in Mattermost Server Unrestricted information disclosure of all users in Mattermost version 6.7.0 and earlier allows team members to access some sensitive information by directly accessing the APIs. | 6.5 |
| 2022-07-12 | CVE-2022-2366 | Incorrect Default Permissions vulnerability in Mattermost Server Incorrect default configuration for trusted IP header in Mattermost version 6.7.0 and earlier allows attacker to bypass some of the rate limitations in place or use manipulated IPs for audit logging via manipulating the request headers. | 5.3 |