CVE-2025-47871

MEDIUM EPSS 6.5%
Published Jun 30, 20251y ago · Modified Jun 17, 20262w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Jun 30, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
5.4
Exploitability
2.8
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
6.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-863 Incorrect Authorization Authorization

Affected Products 8

VendorProductVersionRange
mattermostmattermost_server*≥9.11.0  –  <9.11.16
mattermostmattermost_server*≥10.5.0  –  <10.5.6
mattermostmattermost_server*≥10.6.0  –  <10.6.6
mattermostmattermost_server*≥10.7.0  –  <10.7.3
mattermostmattermost_server10.8.0any
mattermostmattermost_server10.8.0any
mattermostmattermost_server10.8.0any
mattermostmattermost_server10.8.0any

References 1

  • mattermost.com https://mattermost.com/security-updates
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.