CVE-2024-36257

Summary

Mattermost versions 9.5.x <= 9.5.5 and 9.8.0, when using shared channels with multiple remote servers connected, fail to check that the remote server A requesting the server B to update the profile picture of a user is the remote that actually has the user as a local one . This allows a malicious remote A to change the profile images of users that belong to another remote server C that is connected to the server A.

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost9.8.0affected
MattermostMattermost9.5.0 <= 9.5.5affected
MattermostMattermost9.9.0unaffected
MattermostMattermost9.8.1unaffected
MattermostMattermost9.5.6unaffected

Weaknesses

  • CWE-284: CWE-284: Improper Access Control

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References