Vulnerabilities (CVE)

Filtered by vendor Mattermost Subscribe
Total 288 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-5876 1 Mattermost 1 Mattermost Desktop 2023-11-09 N/A 5.3 MEDIUM
Mattermost fails to properly validate a RegExp built off the server URL path, allowing an attacker in control of an enrolled server to mount a Denial Of Service.
CVE-2023-5875 1 Mattermost 1 Mattermost Desktop 2023-11-09 N/A 5.3 MEDIUM
Mattermost Desktop fails to correctly handle permissions or prompt the user for consent on certain sensitive ones allowing media exploitation from a malicious mattermost server
CVE-2023-27266 1 Mattermost 1 Mattermost Server 2023-11-07 N/A 2.7 LOW
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.
CVE-2023-27265 1 Mattermost 1 Mattermost Server 2023-11-07 N/A 2.7 LOW
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.
CVE-2023-27264 1 Mattermost 1 Mattermost 2023-11-07 N/A 6.5 MEDIUM
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.
CVE-2023-27263 1 Mattermost 1 Mattermost 2023-11-07 N/A 6.5 MEDIUM
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.
CVE-2023-1777 1 Mattermost 1 Mattermost Server 2023-11-07 N/A 5.3 MEDIUM
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.
CVE-2023-1776 1 Mattermost 1 Mattermost Server 2023-11-07 N/A 5.4 MEDIUM
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.
CVE-2023-1775 1 Mattermost 1 Mattermost Server 2023-11-07 N/A 6.5 MEDIUM
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.
CVE-2023-1774 1 Mattermost 1 Mattermost Server 2023-11-07 N/A 5.4 MEDIUM
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.
CVE-2023-1562 1 Mattermost 1 Mattermost 2023-11-07 N/A 4.3 MEDIUM
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.
CVE-2022-4045 1 Mattermost 1 Mattermost 2023-11-07 N/A 6.5 MEDIUM
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. 
CVE-2022-4019 1 Mattermost 1 Mattermost 2023-11-07 N/A 6.5 MEDIUM
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.
CVE-2023-5522 1 Mattermost 1 Mattermost 2023-10-24 N/A 4.3 MEDIUM
Mattermost Mobile fails to limit the maximum number of Markdown elements in a post allowing an attacker to send a post with hundreds of emojis to a channel and freeze the mobile app of users when viewing that particular channel. 
CVE-2023-5339 1 Mattermost 1 Mattermost Desktop 2023-10-24 N/A 5.5 MEDIUM
Mattermost Desktop fails to set an appropriate log level during initial run after fresh installation resulting in logging all keystrokes including password entry being logged. 
CVE-2023-5333 1 Mattermost 1 Mattermost Server 2023-10-12 N/A 6.5 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-2023-5330 1 Mattermost 1 Mattermost Server 2023-10-12 N/A 7.5 HIGH
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-2023-5331 1 Mattermost 1 Mattermost Server 2023-10-12 N/A 5.3 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-2023-5160 1 Mattermost 1 Mattermost 2023-10-04 N/A 4.3 MEDIUM
Mattermost fails to check the Show Full Name option at the /api/v4/teams/TEAM_ID/top/team_members endpoint allowing a member to get the full name of another user even if the Show Full Name option was disabled
CVE-2023-5196 1 Mattermost 1 Mattermost 2023-10-03 N/A 6.5 MEDIUM
Mattermost fails to enforce character limits in all possible notification props allowing an attacker to send a really long value for a notification_prop resulting in the server consuming an abnormal quantity of computing resources and possibly becoming temporarily unavailable for its users.