CVE-2023-2193
CRITICALCVSS 9.1/10EPSS 0.59%
Last modified
CVE-2023-2193 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token. . EPSS estimates a 0.59% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 7.1.7 |
| Mattermost | Mattermost | 7.7.3 |
| Mattermost | Mattermost | 7.8.2 |
| Mattermost | Mattermost | 7.9.1 |
References
- https://mattermost.com/security-updates/Vendor Advisory
- https://mattermost.com/security-updates/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-2193?
Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.
How severe is CVE-2023-2193?
CVE-2023-2193 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.
How do I fix CVE-2023-2193?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2023-2193?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST