Mattermost: Security Vulnerabilities
Mattermost 6.0 and earlier fails to sufficiently validate the email address during registration, which allows attackers to trick users into signing up using attacker-controlled email addresses via crafted invitation token.
CVSS Score
3.7
EPSS Score
0.002
Published
2021-12-17
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
Mattermost 6.0.2 and earlier fails to sufficiently sanitize user's password in audit logs when user creation fails.
CVSS Score
5.8
EPSS Score
0.003
Published
2021-12-09
Mattermost 5.38 and earlier fails to sufficiently sanitize clipboard contents, which allows a user-assisted attacker to inject arbitrary web script in product deployments that explicitly disable the default CSP.
CVSS Score
3.7
EPSS Score
0.004
Published
2021-09-22
Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.
CVSS Score
7.1
EPSS Score
0.451
Published
2021-08-05
An issue was discovered in Mattermost Mobile Apps before 1.31.2 on iOS. Unintended third-party servers could sometimes obtain authorization tokens, aka MMSA-2020-0022.
CVSS Score
7.5
EPSS Score
0.003
Published
2020-06-26
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