Vulnerability Details CVE-2025-20033
Mattermost versions 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post types, which allows attackers to deny service to users with the sysconsole_read_plugins permission via creating a post with the custom_pl_notification type and specific props.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 48.7%
CVSS Severity
CVSS v3 Score 4.3
References
Products affected by CVE-2025-20033
-
cpe:2.3:a:mattermost:mattermost_server:10.0.0
-
cpe:2.3:a:mattermost:mattermost_server:10.0.1
-
cpe:2.3:a:mattermost:mattermost_server:10.0.2
-
cpe:2.3:a:mattermost:mattermost_server:10.0.3
-
cpe:2.3:a:mattermost:mattermost_server:10.1.0
-
cpe:2.3:a:mattermost:mattermost_server:10.1.1
-
cpe:2.3:a:mattermost:mattermost_server:10.1.2
-
cpe:2.3:a:mattermost:mattermost_server:10.1.3
-
cpe:2.3:a:mattermost:mattermost_server:10.2.0
-
cpe:2.3:a:mattermost:mattermost_server:9.11.0
-
cpe:2.3:a:mattermost:mattermost_server:9.11.1
-
cpe:2.3:a:mattermost:mattermost_server:9.11.2
-
cpe:2.3:a:mattermost:mattermost_server:9.11.3
-
cpe:2.3:a:mattermost:mattermost_server:9.11.4
-
cpe:2.3:a:mattermost:mattermost_server:9.11.5