CVE-2023-2193: Oauth authorization codes do not expire when deauthorizing an oauth2 app

6.5 CVSS

Description

Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.

Classification

CVE ID: CVE-2023-2193

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.5

Affected Products

Vendor: Mattermost

Product: Mattermost

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.12% (probability of being exploited)

EPSS Percentile: 47.03% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://mattermost.com/security-updates/

Timeline