CVE-2016-11066

An issue was discovered in Mattermost Server before 3.2.0. The initialload API disclosed unnecessary personal information...

CVE-2016-11065

An issue was discovered in Mattermost Server before 3.3.0. An attacker could use the WebSocket feature to send pop-up messages to users or change a post's appearance...

CVE-2016-11071

An issue was discovered in Mattermost Server before 3.1.0. It allows XSS because the noreferrer and noopener protection mechanisms were not in place...

CVE-2016-11069

An issue was discovered in Mattermost Server before 3.2.0. It mishandles brute-force attempts at password change...

CVE-2017-18893

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. Display names allow XSS...

CVE-2017-18875

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can create arbitrary files...

CVE-2017-18876

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can test for the existence of an arbitrary file...

CVE-2019-20872

An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. SSRF can attack local services...

CVE-2018-21260

An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3. WebSocket events were accidentally sent during certain user-management operations, violating user privacy...

CVE-2016-11084

An issue was discovered in Mattermost Server before 2.1.0. It allows XSS via CSRF...

CVE-2019-20881

An issue was discovered in Mattermost Server before 5.8.0. It mishandles brute-force attacks against MFA...

CVE-2019-20889

An issue was discovered in Mattermost Server before 5.7, 5.6.3, 5.5.2, and 4.10.5. It mishandles permissions for user-access token creation...

CVE-2019-20846

An issue was discovered in Mattermost Server before 5.18.0. It has weak permissions for server-local file storage...

CVE-2019-20873

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-2019-20886

An issue was discovered in Mattermost Server before 5.8.0. The first user is sometimes inadvertently a system admin...

CVE-2018-21257

An issue was discovered in Mattermost Server before 5.1. It allows attackers to bypass intended access restrictions for setting a channel header via the Channel header slash command API...

CVE-2015-9548

An issue was discovered in Mattermost Server before 1.2.0. It allows attackers to cause a denial of service memory consumption via a small compressed file that has a large size when uncompressed...

CVE-2017-18921

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...

CVE-2017-18908

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-2017-18884

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...