CVE-2025-6227

Summary

Mattermost versions 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to negotiate a new token when accepting the invite which allows a user that intercepts both invite and password to send synchronization payloads to the server that originally created the invite via the REST API.

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost10.5.0 <= 10.5.7affected
MattermostMattermost9.11.0 <= 9.11.16affected
MattermostMattermost10.9.0unaffected
MattermostMattermost10.5.8unaffected
MattermostMattermost9.11.17unaffected

Weaknesses

  • CWE-522: CWE-522: Insufficiently Protected Credentials

ADP Enrichment

CISA ADP Vulnrichment

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

References