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CVE-2025-9081GO-2025-3978GHSA-F72G-52V7-MG3P

IDOR in board file download allows any user to download any file by UUID

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 0.0.0-20250716054606-3f3e3becfe1d, 9.11.18+incompatible, 10.5.9+incompatible, 8.0.0-20250721095935-11c36f4d1e44, 10.5.9, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate access controls which allows any authenticated user to download sensitive files via board file download endpoint using UUID enumeration

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Mattermost Mattermost

    From 10.5.0 · through 10.5.8; From 9.11.0 · through 9.11.17

  • github.com/mattermost/mattermost-plugin-boardsGo

    fixed in 0.0.0-20250716054606-3f3e3becfe1d

  • github.com/mattermost/mattermost-serverGo

    From 9.11.0-rc1+incompatible · fixed in 9.11.18+incompatible; From 10.5.0-rc1+incompatible · fixed in 10.5.9+incompatible

  • github.com/mattermost/mattermost-server/v5Go

    All versions

  • github.com/mattermost/mattermost-server/v6Go

    All versions

  • github.com/mattermost/mattermost/server/v8Go

    fixed in 8.0.0-20250721095935-11c36f4d1e44

  • github.com/mattermost/mattermost-serverGo

    From 10.5.0-rc1 · fixed in 10.5.9

  • github.com/mattermost/mattermost-serverGo

    From 9.11.0-rc1 · fixed in 9.11.18

References 1

mattermost.com