CVE-2025-3227

Summary

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 channel.

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost10.5.0 <= 10.5.5affected
MattermostMattermost9.11.0 <= 9.11.15affected
MattermostMattermost10.8.0affected
MattermostMattermost10.7.0 <= 10.7.2affected
MattermostMattermost10.6.0 <= 10.6.5affected
MattermostMattermost10.9.0unaffected
MattermostMattermost10.5.6unaffected
MattermostMattermost9.11.16unaffected
MattermostMattermost10.8.1unaffected
MattermostMattermost10.7.3unaffected
MattermostMattermost10.6.6unaffected

Weaknesses

  • CWE-863: CWE-863: Incorrect Authorization

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References