Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.
Open advisories
41 actionable advisories, newest first. Withdrawn advisories and news are excluded. Coverage is partial.
Mattermost fails to properly validate the requesting user permissions when updating a system admin, allowing a user manager to update a system admin's details such as email, first name and last name.
Recommended action: Upgrade to 7.10.4, 7.9.6 or 7.8.8 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Mattermost fails to sanitize post metadata during audit logging, resulting in permalinks' contents being logged.
Recommended action: Upgrade to 7.10.4, 7.9.6 or 7.8.8 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Mattermost fails to delete the attachments when deleting a message in a thread allowing a simple user to still be able to access and download the attachment of a deleted message
Recommended action: Upgrade to 7.10.4, 7.9.6 or 7.8.8 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Mattermost fails to check if the requesting user is a guest before performing different actions to public playbooks, resulting a guest being able to view, join, edit, export and archive public playbooks.
Recommended action: Upgrade to 7.10.4, 7.9.6 or 7.8.8 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
6.0.0-20230511130429-1629a6ca7fed7.10.17.9.47.8.5· Vendor fix available
Issue
Mattermost Apps Framework fails to verify that a secret provided in the incoming webhook request allowing an attacker to modify the contents of the post sent by the Apps.
Recommended action: Upgrade to 7.10.1, 7.9.4, 7.8.5 or 6.0.0-20230511130429-1629a6ca7fed (pre-release) by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Mattermost fails to restrict a user with permissions to edit other users and to create personal access tokens from elevating their privileges to system admin
Recommended action: Upgrade to 7.9.2, 7.8.3, 7.7.4 or 7.1.8 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Go github.com/mattermost/mattermost-server/v6 >= 6.0.0, <= 6.7.2
Fixed in
7.1.6· Vendor fix available
Issue
When running in a High Availability configuration, Mattermost fails to sanitize some of the userupdated and postdeleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients. Issue Identifier: MMSA-2023-00138
Recommended action: Upgrade to 7.1.6 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Go github.com/mattermost/mattermost-server/v6 >= 6.0.0, <= 6.7.2; >= 3.3.0, <= 4.10.10
Fixed in
7.1.6· Vendor fix available
Issue
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. Issue Identifier: MMSA-2023-00139
Recommended action: Upgrade to 7.1.6 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Go github.com/mattermost/mattermost-server/v6 >= 6.3.0, <= 6.7.2; >= 6.0.0-20211025164829-f7a8147b825c, < 6.0.0-20230301145909-10be118d99a5
Fixed in
6.0.0-20230301145909-10be118d99a57.1.6· Vendor fix available
Issue
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.
Recommended action: Upgrade to 7.1.6 or 6.0.0-20230301145909-10be118d99a5 (pre-release) by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Go github.com/mattermost/mattermost-server/v6 >= 6.0.0, <= 6.7.2
Fixed in
7.1.6· Vendor fix available
Issue
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. Issue Identifier: MMSA-2023-00137
Recommended action: Upgrade to 7.1.6 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Go github.com/mattermost/mattermost-server/v6 >= 7.1.0, < 7.2.0
Fixed in
7.2.0· Vendor fix available
Issue
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.
Recommended action: Upgrade to 7.2.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
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.
Recommended action: Upgrade to 6.7.1, 6.6.2, 6.5.2 or 6.3.9 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Go github.com/mattermost/mattermost-server/v6 < 6.5.0
Fixed in
6.5.0· Vendor fix available
Issue
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.
Recommended action: Upgrade to 6.5.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Go github.com/mattermost/mattermost-server/v6 >= 6.4.0, < 6.5.0
Fixed in
6.5.0· Vendor fix available
Issue
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.
Recommended action: Upgrade to 6.5.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Go github.com/mattermost/mattermost-server/v6 < 6.4.2
Fixed in
6.4.2· Vendor fix available
Issue
The image proxy component in Mattermost version 6.4.1 and earlier allocates memory for multiple copies of a proxied image, which allows an authenticated attacker to crash the server via links to very large image files.
Recommended action: Upgrade to 6.4.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
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. Per the Mattermost security updates page, versions 6.4.2, 6.3.5, 6.2.5, and 5.37.9 contain patches for this issue
Recommended action: Upgrade to 6.4.2, 6.3.5 or 6.2.5 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.