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Mattermost Server

mattermost_server

Vendor: Mattermost • 452 CVEs

CVEs (452)

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CVSS
1Mattermost
1Mattermost Server
Jun 17, 2026
Jul 12, 2022
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
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...Show more
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.Show less
1Mattermost
1Mattermost Server
Jun 17, 2026
Jun 2, 2022
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
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.
1Mattermost
1Mattermost Server
Jun 17, 2026
Apr 19, 2022
N/A· v4
4.6 MEDIUM· v3
5.8 MEDIUM· v2
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 informati...Show more
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.Show less
1Mattermost
1Mattermost Server
Jun 17, 2026
Apr 19, 2022
N/A· v4
8.8 HIGH· v3
6.0 MEDIUM· v2
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 v...Show more
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.Show less
1Mattermost
1Mattermost Server
Jun 17, 2026
Apr 13, 2022
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
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.
1Mattermost
1Mattermost Server
Jun 17, 2026
Apr 13, 2022
N/A· v4
4.3 MEDIUM· v3
4.0 MEDIUM· v2
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 lo...Show more
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.Show less
1Mattermost
1Mattermost Server
Jun 17, 2026
Mar 10, 2022
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
A stack overflow bug in the document extractor in Mattermost Server in versions up to and including 6.3.2 allows an attacker to crash the server via submitting a maliciously crafted Apple Pages document.
1Mattermost
1Mattermost Server
Jun 17, 2026
Mar 10, 2022
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A call stack overflow bug in the SAML login feature in Mattermost server in versions up to and including 6.3.2 allows an attacker to crash the server via submitting a maliciously crafted POST body.
1Mattermost
1Mattermost Server
Jun 17, 2026
Dec 17, 2021
N/A· v4
5.7 MEDIUM· v3
3.5 LOW· v2
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.
1Mattermost
1Mattermost Server
Jun 17, 2026
Dec 17, 2021
N/A· v4
5.4 MEDIUM· v3
5.8 MEDIUM· v2
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 toke...Show more
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.Show less
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
6.1 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in Mattermost Server before 3.6.0 and 3.5.2. XSS can occur via a link on an error page.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered in Mattermost Server before 3.6.2. The WebSocket feature does not follow the Same Origin Policy.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
An issue was discovered in Mattermost Server before 3.7.3 and 3.6.5. A System Administrator can place a SAML certificate at an arbitrary pathname.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. Weak hashing was used for e-mail invitations, OAuth, and e-mail verification tokens.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. API endpoint access control does not honor an integration permission restriction.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. After a restart of a server, an attacker might suddenly gain API Endpoint access.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can occur on an error page even if it is not on an allowlist.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
6.1 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. XSS can occur via a link on an error page.
1Mattermost
1Mattermost Server
Nov 21, 2024
Jun 19, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. A password-reset request was sometime sent to an attacker-provided e-mail address.