Mattermost Server vulnerabilities

CVE-2022-1385 [MEDIUM] CWE-664 CVE-2022-1385: Mattermost 6.4.x and earlier fails to properly invalidate pending email invitations when the action 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-2022-1332 [MEDIUM] CWE-200 CVE-2022-1332: One of the API in Mattermost version 6.4.1 and earlier fails to properly protect the permissions, wh 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.

CVE-2022-1337 [MEDIUM] CWE-400 CVE-2022-1337: The image proxy component in Mattermost version 6.4.1 and earlier allocates memory for multiple copi 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.

CVE-2022-0903 [HIGH] CWE-787 CVE-2022-0903: A call stack overflow bug in the SAML login feature in Mattermost server in versions up to and inclu 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.

CVE-2022-0904 [MEDIUM] CWE-787 CVE-2022-0904: A stack overflow bug in the document extractor in Mattermost Server in versions up to and including 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.

CVE-2021-37862 [MEDIUM] CWE-754 CVE-2021-37862: Mattermost 6.0 and earlier fails to sufficiently validate the email address during registration, whi 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 [MEDIUM] CWE-20 CVE-2021-37863: Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which all 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-2017-18900 [CRITICAL] CWE-74 CVE-2017-18900: An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows CSV injectio An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows CSV injection via a compliance report.

CVE-2017-18883 [CRITICAL] CWE-331 CVE-2017-18883: An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAut 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-2017-18885 [CRITICAL] CWE-269 CVE-2017-18885: An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to 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 accessing unintended API endpoints on a user's behalf.

CVE-2017-18911 [CRITICAL] CWE-295 CVE-2017-18911: An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. The X.509 certificate v An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. The X.509 certificate validation can be skipped for a TLS-based e-mail server.

CVE-2017-18915 [CRITICAL] CWE-276 CVE-2017-18915: An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. After a restart of a se 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.

CVE-2018-21251 [CRITICAL] CWE-862 CVE-2018-21251: An issue was discovered in Mattermost Server before 5.2 and 5.1.1. Authorization could be bypassed i An issue was discovered in Mattermost Server before 5.2 and 5.1.1. Authorization could be bypassed if the channel name were not the same in the params and the body.

CVE-2017-18912 [CRITICAL] CWE-22 CVE-2017-18912: An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. It allows an attacker t An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. It allows an attacker to specify a full pathname of a log file.

CVE-2017-18888 [CRITICAL] CWE-89 CVE-2017-18888: An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows SQL injection An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows SQL injection during the fetching of multiple posts.

CVE-2016-11074 [CRITICAL] CWE-287 CVE-2016-11074: An issue was discovered in Mattermost Server before 3.0.0. A password-reset link could be reused. An issue was discovered in Mattermost Server before 3.0.0. A password-reset link could be reused.

CVE-2017-18908 [CRITICAL] CWE-287 CVE-2017-18908: An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. A password-reset reque 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.

CVE-2017-18920 [CRITICAL] CVE-2017-18920: An issue was discovered in Mattermost Server before 3.6.2. The WebSocket feature does not follow the An issue was discovered in Mattermost Server before 3.6.2. The WebSocket feature does not follow the Same Origin Policy.

CVE-2019-20888 [HIGH] CWE-401 CVE-2019-20888: An issue was discovered in Mattermost Server before 5.7, 5.6.3, 5.5.2, and 4.10.5. It allows attacke An issue was discovered in Mattermost Server before 5.7, 5.6.3, 5.5.2, and 4.10.5. It allows attackers to cause a denial of service (memory consumption) via an outgoing webhook or a slash command integration.

CVE-2020-14450 [HIGH] CVE-2020-14450: An issue was discovered in Mattermost Server before 5.22.0. The markdown renderer allows attackers t An issue was discovered in Mattermost Server before 5.22.0. The markdown renderer allows attackers to cause a denial of service (client-side), aka MMSA-2020-0017.