4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.5 Medium
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
17.9%
Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they donβt have access to,
[
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"lessThanOrEqual": "7.8.6",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.9.4",
"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": "7.9.5"
},
{
"status": "unaffected",
"version": "7.8.7"
}
]
}
]
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.5 Medium
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
17.9%