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osvGoogleOSV:CVE-2023-2193
HistoryApr 20, 2023 - 9:15 a.m.

CVE-2023-2193

2023-04-2009:15:10
Google
osv.dev
2
mattermost
oauth2
authorization code
access token
security issue

CVSS3

9.1

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

AI Score

7.2

Confidence

Low

EPSS

0.001

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.

CVSS3

9.1

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

AI Score

7.2

Confidence

Low

EPSS

0.001

Percentile

43.5%

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