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CVE-2025-47871

Mattermost Playbooks exposes private channel metadata to unauthorized users via run metadata API PUBLISHED

Description (CNA)

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 validate channel membership when retrieving playbook run metadata, allowing authenticated users who are playbook members but not channel members to access sensitive information about linked private channels including channel name, display name, and participant count through the run metadata API endpoint.

Affected (CNA)

Vendor / productVersions
Mattermost / Mattermostaffected 10.5.0 through 10.5.5; affected 9.11.0 through 9.11.15; affected 10.8.0; affected 10.7.0 through 10.7.2; affected 10.6.0 through 10.6.5; unaffected 10.9.0; unaffected 10.5.6; unaffected 9.11.16; unaffected 10.8.1; unaffected 10.7.3; unaffected 10.6.6

CWE

CWE-863

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.