UpHeron
All vulnerabilities

Servers and applications

CVE-2025-3227

Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly enforce channel member management permissions in playbook runs, allowing authenticated users without the 'Manage Channel Members' permission to add or remove users from public and private channels by manipulating playbook run participants when the run is linked to a…

Severity
Medium 4.3
Published
20 Jun 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.11.16, 10.5.6, 10.6.6, 10.7.3
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Version 10.8.0
  • Version 10.8.0-rc3
  • Version 10.8.0-rc2
  • Version 10.8.0-rc1
All 8 release lines
  • From 9.11.0 before 9.11.16
  • From 10.5.0 before 10.5.6
  • From 10.6.0 before 10.6.6
  • From 10.7.0 before 10.7.3
  • Version 10.8.0-rc1
  • Version 10.8.0-rc2
  • Version 10.8.0-rc3
  • Version 10.8.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-3227
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-3227