Mattermost: Security Vulnerabilities
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.
CVSS Score
4.3
EPSS Score
0.004
Published
2022-11-23
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
CVSS Score
4.3
EPSS Score
0.005
Published
2022-11-23
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.
CVSS Score
3.1
EPSS Score
0.004
Published
2022-09-23
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.
CVSS Score
3.1
EPSS Score
0.012
Published
2022-09-09
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.
CVSS Score
6.5
EPSS Score
0.003
Published
2022-07-14
The legacy Slack import feature in Mattermost version 6.7.0 and earlier fails to properly limit the sizes of imported files, which allows an authenticated attacker to crash the server by importing large files via the Slack import REST API.
CVSS Score
4.3
EPSS Score
0.004
Published
2022-07-14
The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.
CVSS Score
4.3
EPSS Score
0.001
Published
2022-07-14
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.
CVSS Score
5.6
EPSS Score
0.002
Published
2022-07-12
Uncontrolled resource consumption in Mattermost version 6.6.0 and earlier allows an authenticated attacker to crash the server via a crafted SVG attachment on a post.
CVSS Score
4.3
EPSS Score
0.004
Published
2022-06-02
Mattermost Playbooks plugin 1.25 and earlier fails to properly restrict user-level permissions, which allows playbook members to escalate their membership privileges and perform actions restricted to playbook admins.
CVSS Score
3.7
EPSS Score
0.002
Published
2022-05-03