CVE-2025-8402

{"id": "CVE-2025-8402", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.2}]}, "published": "2025-08-21T17:15:33.093", "references": [{"url": "https://mattermost.com/security-updates", "source": "responsibledisclosure@mattermost.com"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "description": [{"lang": "en", "value": "CWE-476"}, {"lang": "en", "value": "CWE-1287"}]}], "descriptions": [{"lang": "en", "value": "Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import feature."}], "lastModified": "2025-08-21T17:15:33.093", "sourceIdentifier": "responsibledisclosure@mattermost.com"}