Vulnerability in Mattermost
CVE-2024-4198
Mattermost versions 9.6.0, 9.5.x before 9.5.3, and 8.1.x before 8.1.12 fail to fully validate role changes which allows an attacker authenticated as team admin to demote users to guest via crafted HTTP requests.
EPSS: 0.005 (40.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Mattermost — versions 9.6.0, 9.5.0, 8.1.0
- Mattermost Mattermost_server — versions 9.6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- responsibledisclosure@mattermost.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-4198?
- CVE-2024-4198 is a low-severity vulnerability in Mattermost, classified under Improper Access Control. CVSS score: 2.7/10. Published 2024-04-26.
- How severe is CVE-2024-4198?
- Low severity. CVSS v3 base score is 2.7 out of 10.
- Is CVE-2024-4198 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.