9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.2 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
43.5%
Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.
[
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"lessThanOrEqual": "7.1.7",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.7.3",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.9.1",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "7.10"
},
{
"status": "unaffected",
"version": "7.9.3"
},
{
"status": "unaffected",
"version": "7.8.4"
},
{
"status": "unaffected",
"version": "7.7.5"
},
{
"status": "unaffected",
"version": "7.1.9"
}
]
}
]
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.2 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
43.5%