4.3

CVE-2024-39839

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.

Data is provided by the National Vulnerability Database (NVD)
Mattermost ≫ Mattermost Server Version >= 9.5.0 < 9.5.7
Mattermost ≫ Mattermost Server Version >= 9.7.0 < 9.7.6
Mattermost ≫ Mattermost Server Version >= 9.8.0 < 9.8.2
Mattermost ≫ Mattermost Server Version9.9.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.22% 0.443
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
responsibledisclosure@mattermost.com 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.