CVE-2025-6465

Summary

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs.

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost10.8.0 <= 10.8.3affected
MattermostMattermost10.5.0 <= 10.5.8affected
MattermostMattermost10.10.0affected
MattermostMattermost10.9.0 <= 10.9.3affected
MattermostMattermost10.11.0unaffected
MattermostMattermost10.8.4unaffected
MattermostMattermost10.5.9unaffected
MattermostMattermost10.10.1unaffected
MattermostMattermost10.9.4unaffected

Weaknesses

  • CWE-22: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

ADP Enrichment

CISA ADP Vulnrichment

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

References