Mattermost: Security Vulnerabilities
Mattermost fails to to check the length when setting the title in a run checklist in Playbooks, allowing an attacker to send a specially crafted request and crash the Playbooks plugin
CVSS Score
4.3
EPSS Score
0.001
Published
2023-12-12
Mattermost is grouping calls in the /metrics endpoint by id and reports that id in the response. Since this id is the channelID, the public /metrics endpoint is revealing channelIDs.
CVSS Score
5.3
EPSS Score
0.003
Published
2023-12-06
Mattermost webapp fails to validate route parameters in/<TEAM_NAME>/channels/<CHANNEL_NAME> allowing an attacker to perform a client-side path traversal.
CVSS Score
7.1
EPSS Score
0.004
Published
2023-12-06
Mattermost fails to properly check a redirect URL parameter allowing for an open redirect was possible when the user clicked "Back to Mattermost" after providing a invalid custom url scheme in /oauth/{service}/mobile_login?redirect_to=
CVSS Score
4.3
EPSS Score
0.001
Published
2023-11-27
Mattermost fails to limit the amount of data extracted from compressed archives during board import in Mattermost Boards allowing an attacker to consume excessive resources, possibly leading to Denial of Service, by importing a board using a specially crafted zip (zip bomb).
CVSS Score
4.3
EPSS Score
0.001
Published
2023-11-27
Mattermost fails to limit the log size of server logs allowing an attacker sending specially crafted requests to different endpoints to potentially overflow the log.
CVSS Score
4.3
EPSS Score
0.001
Published
2023-11-27
Mattermost fails to perform proper authorization in the /plugins/focalboard/api/v2/users endpoint allowing an attacker who is a guest user and knows the ID of another user to get their information (e.g. name, surname, nickname) via Mattermost Boards.
CVSS Score
4.3
EPSS Score
0.002
Published
2023-11-27
Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.
CVSS Score
3.1
EPSS Score
0.004
Published
2023-11-27
Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string.
CVSS Score
4.3
EPSS Score
0.001
Published
2023-11-27
Mattermost fails to check whether the “Allow users to view archived channels” setting is enabled during permalink previews display, allowing members to view permalink previews of archived channels even if the “Allow users to view archived channels” setting is disabled.
CVSS Score
4.3
EPSS Score
0.003
Published
2023-11-27