title: Member can create team with team override scheme
description: Mattermost fails to properly check the authorization of POST /api/v4/teams when passing a team override scheme ID in the request, allowing an authenticated attacker with knowledge of a Team Override Scheme ID to create a new team with said team override scheme.
problem types: CWE-863 Incorrect Authorization
affected:
{
defaultStatus: affected
product: Mattermost
vendor: Mattermost
versions:
lessThanOrEqual: 7.8.4, status: affected, version: 0, versionType: semver
lessThanOrEqual: 7.10.2, status: affected, version: 0, versionType: semver
status: unaffected, version: 7.10.3
status: unaffected, version: 7.8.5
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 3.1
baseSeverity: LOW
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: Update Mattermost Server to versions v7.8.5, v7.10.3 or higher.