CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
9.0%
Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to correctly verify account ownership when switching from email to SAML authentication, allowing an authenticated attacker to take over other user accounts via a crafted switch request under specific conditions.
[
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"status": "affected",
"version": "9.5.0"
},
{
"lessThanOrEqual": "9.4.2",
"status": "affected",
"version": "9.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.3.1",
"status": "affected",
"version": "9.3.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.2.5",
"status": "affected",
"version": "9.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.1.9",
"status": "affected",
"version": "8.1.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "9.6.0"
},
{
"status": "unaffected",
"version": "9.4.3"
},
{
"status": "unaffected",
"version": "9.5.1"
},
{
"status": "unaffected",
"version": "9.3.2"
},
{
"status": "unaffected",
"version": "9.2.6"
},
{
"status": "unaffected",
"version": "8.1.10"
}
]
}
]