CVE-2025-46702

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 when adding participants to playbook runs. This allows authenticated users with member-level permissions to bypass system admin restrictions and add or remove users to/from private channels via the playbook run participants feature, even when the 'Manage Members' permission has been explicitly removed. This can lead to unauthorized access to sensitive channel content and allow guest users to gain channel management privileges.

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