| CVE-2019-20869 | 中5.3 | 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. | 19/06/2020 |
| CVE-2019-20868 | 高7.5 | An issue was discovered in Mattermost Server before 5.11.0. Invite IDs were improperly generated. | 19/06/2020 |
| CVE-2019-20867 | 中5.3 | 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. | 19/06/2020 |
| CVE-2019-20866 | 中5.3 | An issue was discovered in Mattermost Server before 5.12.0. Use of a Proxy HTTP header, rather than the source address in an IP packet header, for obtaining IP address information was mishandled. | 19/06/2020 |
| CVE-2019-20865 | 高8.8 | An issue was discovered in Mattermost Server before 5.12.0, 5.11.1, 5.10.2, 5.9.2, and 4.10.10. The login page allows CSRF. | 19/06/2020 |
| CVE-2019-20864 | 高7.5 | 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. | 19/06/2020 |
| CVE-2019-20863 | 高7.5 | An issue was discovered in Mattermost Server before 5.13.0. Incoming webhook creation is not properly restricted. | 19/06/2020 |
| CVE-2019-20862 | 高7.5 | An issue was discovered in Mattermost Server before 5.13.0. Non-members may fetch a team's slash commands. | 19/06/2020 |
| CVE-2019-20861 | 高8.8 | An issue was discovered in Mattermost Desktop App before 4.2.2. It allows attackers to execute arbitrary code via a crafted link. | 19/06/2020 |
| CVE-2019-20860 | 中5.5 | An issue was discovered in Mattermost Server before 5.14.0, 5.13.3, 5.12.6, and 5.9.4. It allows remote attackers to cause a denial of service (application hang) via a crafted SVG document. | 19/06/2020 |
| CVE-2019-20859 | 高7.5 | An issue was discovered in Mattermost Server before 5.15.0. Login access control can be bypassed via crafted input. | 19/06/2020 |
| CVE-2019-20858 | 高7.5 | An issue was discovered in Mattermost Server before 5.15.0. It allows attackers to cause a denial of service (CPU consumption) via crafted characters in a SQL LIKE clause to an APIv4 endpoint. | 19/06/2020 |
| CVE-2019-20857 | 高7.5 | An issue was discovered in Mattermost Server before 5.16.0. It allows attackers to cause a denial of service (markdown renderer hang) via many backtick characters. | 19/06/2020 |
| CVE-2019-20856 | 緊急9.8 | An issue was discovered in Mattermost Desktop App before 4.3.0 on macOS. It allows dylib injection. | 19/06/2020 |
| CVE-2019-20855 | 高7.5 | 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. | 19/06/2020 |
| CVE-2019-20854 | 高7.5 | An issue was discovered in Mattermost Server before 5.17.0. It allows remote attackers to cause a denial of service (client-side application crash) via a LaTeX message. | 19/06/2020 |
| CVE-2019-20853 | 緊急9.8 | An issue was discovered in Mattermost Packages before 5.16.3. A Droplet could allow Internet access to a service that has a remote code execution problem. | 19/06/2020 |
| CVE-2019-20852 | 高7.5 | 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). | 19/06/2020 |
| CVE-2019-20851 | 緊急9.1 | 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. | 19/06/2020 |
| CVE-2020-14460 | 中6.5 | 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. | 19/06/2020 |