CVE-2024-42406
5.4
MEDIUM
CVSS 3.1
EPSS 0.28%
Description
Mattermost versions 9.11.x <= 9.11.0, 9.10.x <= 9.10.1, 9.9.x <= 9.9.2 and 9.5.x <= 9.5.8 fail to properly authorize requests when viewing archived channels is disabled, which allows an attacker to retrieve post and file information about archived channels. Examples are flagged or unread posts as well as files.
How to fix CVE-2024-42406
To remediate CVE-2024-42406, upgrade the affected package to a fixed version below.
- Bitnami/mattermost—upgrade to 9.5.9 or later
Is CVE-2024-42406 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 9.5.0, < 9.5.9, >= 9.9.0, < 9.9.3, >= 9.10.0, < 9.10.2 | >= 9.11.0-rc1, <= 9.11.0-rc1, >= 9.11.0-rc2, <= 9.11.0-rc2, >= 9.11.0-rc3, <= 9.11.0-rc3, >= 9.11.0, <= 9.11.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |