Vulnerability in Mattermost
CVE-2024-42406
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (11.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Mattermost — versions 9.11.0, 9.10.0, 9.9.0
- Mattermost Server — versions 9.11.0
Weakness classification (CWE)
References
- mattermost.com/security-updates (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-42406?
- CVE-2024-42406 is a medium-severity vulnerability in Mattermost, classified under Improper Access Control. CVSS score: 5.4/10. Published 2024-09-26.
- How severe is CVE-2024-42406?
- Medium severity. CVSS v3 base score is 5.4 out of 10.