| CVE-2017-18886 | 高危8.8 | An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows a bypass of restrictions on use of slash commands. | 19/06/2020 |
| CVE-2017-18885 | 严重9.8 | 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. | 19/06/2020 |
| CVE-2017-18884 | 高危8.1 | 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. | 19/06/2020 |
| CVE-2017-18883 | 严重9.1 | 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. | 19/06/2020 |
| CVE-2017-18879 | 中危6.1 | An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the author_link field of a Slack attachment. | 19/06/2020 |
| CVE-2017-18878 | 中危4.3 | 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. | 19/06/2020 |
| CVE-2017-18874 | 中危6.5 | 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 achieve directory traversal. | 19/06/2020 |
| CVE-2017-18873 | 中危5.3 | An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to cause a denial of service (channel invisibility) via a misformatted post. | 19/06/2020 |
| CVE-2017-18872 | 中危4.3 | An issue was discovered in Mattermost Server before 4.4.3 and 4.3.3. Attackers could reconfigure an OAuth app in some cases where Mattermost is an OAuth 2.0 service provider. | 19/06/2020 |
| CVE-2018-21258 | 高危7.5 | An issue was discovered in Mattermost Server before 5.1. It allows attackers to cause a denial of service via the invite_people slash command. | 19/06/2020 |
| CVE-2017-18877 | 中危6.1 | An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS attacks could occur against an OAuth 2.0 allow/deny page. | 19/06/2020 |
| CVE-2017-18876 | 中危4.9 | 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. | 19/06/2020 |
| CVE-2017-18875 | 中危4.9 | 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. | 19/06/2020 |
| CVE-2017-18871 | 高危7.5 | An issue was discovered in Mattermost Server before 4.5.0, 4.4.5, 4.3.4, and 4.2.2. It allows attackers to cause a denial of service (application crash) via an @ character before a JavaScript field name. | 19/06/2020 |
| CVE-2017-18870 | 中危4.3 | An issue was discovered in Mattermost Server before 4.5.0, 4.4.5, and 4.3.4. It mishandled webhook access control in the EnableOnlyAdminIntegrations case. | 19/06/2020 |
| CVE-2020-14457 | 中危5.3 | 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. | 19/06/2020 |