CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
9.0%
Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1 and 8.1.x <= 8.1.12 fail to perform a proper authorization check in the /api/v4/groups/<group-id>/channels/<channel-id>/link endpointย which allows a userย to learn the members ofย an AD/LDAP group that is linked to a team by adding the group to a channel, even if the user has no access to the team.
[
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"lessThanOrEqual": "9.5.3",
"status": "affected",
"version": "9.5.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.7.1",
"status": "affected",
"version": "9.7.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.1.12",
"status": "affected",
"version": "8.1.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "9.8.0"
},
{
"status": "unaffected",
"version": "9.5.4"
},
{
"status": "unaffected",
"version": "9.7.2"
},
{
"status": "unaffected",
"version": "8.1.13"
}
]
}
]
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
9.0%