CVE-2022-1332

Restricted custom admin role can bypass the restrictions and view the server logs and server config.json file contents

One of the API in Mattermost version 6.4.1 and earlier fails to properly protect the permissions, which allows the authenticated members with restricted custom admin role to bypass the restrictions and view the server logs and server config.json file contents.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2022-1385

Invitation Email is resent as a Reminder after invalidating pending email invites

Mattermost 6.4.x and earlier fails to properly invalidate pending email invitations when the action is performed from the system console, which allows accidentally invited users to join the workspace and access information from the public teams and channels.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2022-1384

Authorized users are allowed to install old plugin versions from the Marketplace

Mattermost version 6.4.x and earlier fails to properly check the plugin version when a plugin is installed from the Marketplace, which allows an authenticated and an authorized user to install and exploit an old plugin version from the Marketplace which might have known vulnerabilities.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2022-1548

Playbook members are allowed to escalate their membership privileges and perform actions restricted to playbook admins.

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 3.1 · 3.7 Low EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Playbooks

CVE-2022-1982

A crafted SVG attachment can crash a Mattermost server

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 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2022-2366

Incorrect defaults can cause attackers to bypass rate limitations

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 3.1 · 5.6 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2022-2401

Team members could access sensitive information of other users via an API call

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 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2022-2406

Malicious imports can lead to Denial of Service

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 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost

CVE-2022-2408

Guest accounts can list all public channels

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 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost

CVE-2022-3147

Server-side Denial of Service while processing a specifically crafted JPEG file

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 3.1 · 3.1 Low EPSS 1.1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2022-3257

Server-side Denial of Service while processing a specifically crafted GIF file

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 3.1 · 3.1 Low EPSS 1.3% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2022-4019

Authenticated user could send multiple requests containing a large payload to a Playbooks API and can crash a Mattermost server

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 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost

CVE-2022-4044

Authenticated user could send multiple requests containing a large Auto Responder Message payload and can crash a Mattermost server

A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.

CVSS 3.1 · 4.3 Medium EPSS 1.1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost

CVE-2022-4045

Authenticated user could send multiple requests containing a parameter which could fetch a large amount of data and can crash a Mattermost server

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. 

CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost

CVE-2023-27263

IDOR: Accessing playbook runs via the Playbooks Runs API

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.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost

CVE-2023-27264

IDOR: Updating a playbook via the Playbooks API

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.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost

CVE-2023-27265

Disclosure of team owner email address when regenerating Invite ID

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.

CVSS 3.1 · 2.7 Low EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2023-27266

Disclosure of team owner email address when when accessing the teams API

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.

CVSS 3.1 · 2.7 Low EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2023-1421

Reflected XSS in OAuth flow completion endpoints

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.

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost Server

CVE-2023-1562

Full name revealed via /plugins/focalboard/api/v2/users

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.

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed

Vendors

Mattermost

Products

Mattermost