Vulnerabilities (CVE)

Filtered by vendor Mattermost Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2022-2401 1 Mattermost 1 Mattermost Server 2022-07-20 N/A 6.5 MEDIUM
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.
CVE-2022-1982 1 Mattermost 1 Mattermost Server 2022-06-11 4.0 MEDIUM 6.5 MEDIUM
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.
CVE-2022-1548 1 Mattermost 1 Playbooks 2022-05-12 6.5 MEDIUM 8.8 HIGH
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.
CVE-2022-1385 1 Mattermost 1 Mattermost Server 2022-04-27 5.8 MEDIUM 4.6 MEDIUM
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.
CVE-2022-1384 1 Mattermost 1 Mattermost Server 2022-04-27 6.0 MEDIUM 8.8 HIGH
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.
CVE-2021-37866 1 Mattermost 1 Mattermost Boards 2022-02-03 5.0 MEDIUM 7.5 HIGH
Mattermost Boards plugin v0.10.0 and earlier fails to invalidate a session on the server-side when a user logged out of Boards, which allows an attacker to reuse old session token for authorization.
CVE-2021-37864 1 Mattermost 1 Mattermost 2022-01-24 4.0 MEDIUM 6.5 MEDIUM
Mattermost 6.1 and earlier fails to sufficiently validate permissions while viewing archived channels, which allows authenticated users to view contents of archived channels even when this is denied by system administrators by directly accessing the APIs.
CVE-2021-37865 1 Mattermost 1 Mattermost 2022-01-24 3.5 LOW 5.7 MEDIUM
Mattermost 6.2 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.
CVE-2021-37867 1 Mattermost 1 Mattermost Boards 2022-01-24 4.0 MEDIUM 4.3 MEDIUM
Mattermost Boards plugin v0.10.0 and earlier fails to protect email addresses of all users via one of the Boards APIs, which allows authenticated and unauthorized users to access this information resulting in sensitive & private information disclosure.
CVE-2021-37862 1 Mattermost 1 Mattermost Server 2021-12-27 5.8 MEDIUM 5.4 MEDIUM
Mattermost 6.0 and earlier fails to sufficiently validate the email address during registration, which allows attackers to trick users into signing up using attacker-controlled email addresses via crafted invitation token.
CVE-2021-37863 1 Mattermost 1 Mattermost Server 2021-12-21 3.5 LOW 5.7 MEDIUM
Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post.
CVE-2021-37861 1 Mattermost 1 Mattermost 2021-12-13 5.0 MEDIUM 7.5 HIGH
Mattermost 6.0.2 and earlier fails to sufficiently sanitize user's password in audit logs when user creation fails.
CVE-2021-37860 1 Mattermost 1 Mattermost 2021-10-05 2.6 LOW 6.1 MEDIUM
Mattermost 5.38 and earlier fails to sufficiently sanitize clipboard contents, which allows a user-assisted attacker to inject arbitrary web script in product deployments that explicitly disable the default CSP.
CVE-2019-20856 2 Apple, Mattermost 2 Macos, Mattermost Desktop 2021-09-08 7.5 HIGH 9.8 CRITICAL
An issue was discovered in Mattermost Desktop App before 4.3.0 on macOS. It allows dylib injection.
CVE-2021-37859 1 Mattermost 1 Mattermost 2021-08-12 4.3 MEDIUM 6.1 MEDIUM
Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.
CVE-2020-14449 1 Mattermost 1 Mattermost Mobile 2021-07-21 4.3 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Mobile Apps before 1.30.0. Authorization tokens can sometimes be disclosed to third-party servers, aka MMSA-2020-0018.
CVE-2020-14451 2 Apple, Mattermost 2 Iphone Os, Mattermost Mobile 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Mobile Apps before 1.29.0. The iOS app allowed Single Sign-On cookies and Local Storage to remain after a logout, aka MMSA-2020-0013.
CVE-2020-14457 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.20.0. Non-members can receive broadcasted team details via the update_team WebSocket event, aka MMSA-2020-0012.
CVE-2019-20859 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Server before 5.15.0. Login access control can be bypassed via crafted input.
CVE-2019-20855 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Server before 5.16.1, 5.15.2, 5.14.5, and 5.9.6. It allows attackers to obtain sensitive information (local files) during legacy attachment migration.
CVE-2019-20845 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Server before 5.18.0. It allows attackers to cause a denial of service (memory consumption) via a large Slack import.
CVE-2019-20885 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Server before 5.8.0. It does not always generate a robots.txt file.
CVE-2019-20884 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.8.0. It allows attackers to partially attach a file to more than one post.
CVE-2020-14458 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Server before 5.19.0. Attackers can discover private channels via the "get channel by name" API, aka MMSA-2020-0004.
CVE-2019-20881 1 Mattermost 1 Mattermost Server 2021-07-21 7.5 HIGH 7.3 HIGH
An issue was discovered in Mattermost Server before 5.8.0. It mishandles brute-force attacks against MFA.
CVE-2019-20867 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.11.0. An attacker can interfere with a channel's post loading via one crafted post.
CVE-2020-14460 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 6.5 MEDIUM
An issue was discovered in Mattermost Server before 5.19.0, 5.18.1, 5.17.3, 5.16.5, and 5.9.8. Creation of a trusted OAuth application does not always require admin privileges, aka MMSA-2020-0001.
CVE-2019-20849 1 Mattermost 1 Mattermost Mobile 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Mobile Apps before 1.26.0. Cookie data can persist on a device after a logout.
CVE-2019-20890 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.7. It allows a bypass of e-mail address discovery restrictions.
CVE-2020-13891 1 Mattermost 1 Mattermost 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Mobile Apps before 1.31.2 on iOS. Unintended third-party servers could sometimes obtain authorization tokens, aka MMSA-2020-0022.
CVE-2019-20879 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. Changes to e-mail addresses do not require credential re-entry.
CVE-2019-20852 1 Mattermost 1 Mattermost Mobile 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Mobile Apps before 1.26.0. Local logging is not blocked for sensitive information (e.g., server addresses or message content).
CVE-2019-20877 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. It allows attackers to obtain sensitive information about whether someone has 2FA enabled.
CVE-2019-20880 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. It allows attackers to cause a denial of service (memory consumption) via OpenGraph.
CVE-2019-20864 1 Mattermost 1 Mattermost Plugins 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Plugins before 5.13.0. The GitHub plugin allows an attacker to attach his Mattermost account to a different person's GitHub account.
CVE-2019-20850 1 Mattermost 1 Mattermost Mobile 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Mobile Apps before 1.26.0. A view cache can persist on a device after a logout.
CVE-2019-20873 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 6.5 MEDIUM
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. It allows attackers to obtain sensitive information during user activation/deactivation.
CVE-2019-20876 1 Mattermost 1 Mattermost Server 2021-07-21 5.5 MEDIUM 5.4 MEDIUM
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. Users can deactivate themselves, bypassing a policy.
CVE-2019-20887 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.7.1, 5.6.4, 5.5.3, and 4.10.6. It does not honor flags API permissions when deciding whether a user can receive intra-team posts.
CVE-2019-20878 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. Changes, within the application, to e-mail addresses are mishandled.
CVE-2019-20874 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. It allows attackers to obtain sensitive information during a role change.
CVE-2019-20875 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. It allows a password reset to proceed while an e-mail address is being changed.
CVE-2019-20883 1 Mattermost 1 Mattermost Server 2021-07-21 3.5 LOW 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.8.0, when Town Square is set to Read-Only. Users can pin or unpin a post.
CVE-2019-20869 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.10.0, 5.9.1, 5.8.2, and 4.10.9. A non-member could change the Update/Patch Channel endpoint for a private channel.
CVE-2019-20841 1 Mattermost 1 Mattermost Server 2021-04-12 6.8 MEDIUM 8.8 HIGH
An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. CSRF can sometimes occur via a crafted web site for account takeover attacks.
CVE-2019-20851 1 Mattermost 1 Mattermost 2020-10-27 6.4 MEDIUM 9.1 CRITICAL
An issue was discovered in Mattermost Mobile Apps before 1.26.0. An attacker can use directory traversal with the Video Preview feature to overwrite arbitrary files on a device.
CVE-2017-18883 1 Mattermost 1 Mattermost Server 2020-07-02 6.4 MEDIUM 9.1 CRITICAL
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data.
CVE-2017-18884 1 Mattermost 1 Mattermost Server 2020-06-30 5.5 MEDIUM 8.1 HIGH
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by using a registered OAuth application with personal access tokens.
CVE-2017-18878 1 Mattermost 1 Mattermost Server 2020-06-30 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. Knowledge of a session ID allows revoking another user's session.
CVE-2018-21264 1 Mattermost 1 Mattermost Server 2020-06-30 6.5 MEDIUM 8.8 HIGH
An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.