Mattermost: >> Mattermost Server >> 4.9.1 Security Vulnerabilities
An issue was discovered in Mattermost Server before 5.8.0. The first user is sometimes inadvertently a system admin.
CVSS Score
7.5
EPSS Score
0.002
Published
2020-06-19
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.
CVSS Score
4.3
EPSS Score
0.001
Published
2020-06-19
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.
CVSS Score
7.5
EPSS Score
0.004
Published
2020-06-19
An issue was discovered in Mattermost Server before 5.4.0. It mishandles possession of superfluous authentication credentials.
CVSS Score
7.5
EPSS Score
0.003
Published
2020-06-19
An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.
CVSS Score
3.7
EPSS Score
0.002
Published
2020-06-19
An issue was discovered in Mattermost Server before 5.2.2, 5.1.2, and 4.10.4. It allows remote attackers to cause a denial of service (memory consumption) via crafted image dimensions.
CVSS Score
6.5
EPSS Score
0.004
Published
2020-06-19
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.
CVSS Score
9.8
EPSS Score
0.004
Published
2020-06-19
An issue was discovered in Mattermost Server before 5.1, 5.0.2, and 4.10.2. An attacker could use the invite_people slash command to invite a non-permitted user.
CVSS Score
4.3
EPSS Score
0.002
Published
2020-06-19
An issue was discovered in Mattermost Server before 5.1. An attacker can bypass intended access control (for direct-message channel creation) via the Message slash command.
CVSS Score
4.3
EPSS Score
0.002
Published
2020-06-19
An issue was discovered in Mattermost Server before 5.1. Non-members of a channel could use the Channel PATCH API to modify that channel.
CVSS Score
4.3
EPSS Score
0.002
Published
2020-06-19