All vulnerabilities

Servers and applications

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.

Severity
Low 2.7
Published
26 Apr 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
8.1.12, 9.5.3
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • From 8.1.0 before 8.1.12
  • From 9.5.0 before 9.5.3
  • Version 9.6.0-rc1
  • Version 9.6.0-rc2
  • Version 9.6.0-rc3
  • Version 9.6.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-4198
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-4198