Security Vulnerabilities
- CVEs Published In June 2020
An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. It allows attackers to cause a denial of service (memory consumption) via OpenGraph.
An issue was discovered in Mattermost Server before 5.8.0. It mishandles brute-force attacks against MFA.
An issue was discovered in Mattermost Server before 5.8.0. It does not honor the domain requirement when processing a join request for an open team.
An issue was discovered in Mattermost Server before 5.8.0, when Town Square is set to Read-Only. Users can pin or unpin a post.
An issue was discovered in Mattermost Server before 5.8.0. It allows attackers to partially attach a file to more than one post.
An issue was discovered in Mattermost Server before 5.8.0. It does not always generate a robots.txt file.
An issue was discovered in Mattermost Server before 5.8.0. The first user is sometimes inadvertently a system admin.
An issue was discovered in Mattermost Server before 5.7.1, 5.6.4, 5.5.3, and 4.10.6. It does not honor flags API permissions when deciding whether a user can receive intra-team posts.
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.
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.