Mattermost: >> Mattermost Server Security Vulnerabilities
Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post.
CVSS Score
3.5
EPSS Score
0.006
Published
2021-12-17
An issue was discovered in Mattermost Server before 2.1.0. It allows XSS via CSRF.
CVSS Score
6.1
EPSS Score
0.001
Published
2020-06-19
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when used as an OAuth 2.0 service provider, Session invalidation was mishandled.
CVSS Score
5.3
EPSS Score
0.002
Published
2020-06-19
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when Single Sign-On OAuth2 is used. An attacker could claim somebody else's account.
CVSS Score
8.1
EPSS Score
0.002
Published
2020-06-19
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. XSS could occur via a channel header.
CVSS Score
6.1
EPSS Score
0.004
Published
2020-06-19
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.
CVSS Score
9.8
EPSS Score
0.004
Published
2020-06-19
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. XSS can occur via a link on an error page.
CVSS Score
6.1
EPSS Score
0.004
Published
2020-06-19
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can occur on an error page even if it is not on an allowlist.
CVSS Score
5.3
EPSS Score
0.002
Published
2020-06-19
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. After a restart of a server, an attacker might suddenly gain API Endpoint access.
CVSS Score
9.8
EPSS Score
0.004
Published
2020-06-19
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. API endpoint access control does not honor an integration permission restriction.
CVSS Score
5.3
EPSS Score
0.002
Published
2020-06-19