What is CVE-2023-2788?

CVE-2023-2788 is a medium-severity vulnerability in Mattermost, classified under Missing Authorization. CVSS score: 6.2/10. Published 2023-06-16.

How severe is CVE-2023-2788?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Auth bypass in Mattermost

CVE-2023-2788

Mattermost fails to check if an admin user account active after an oauth2 flow is started, allowing an attacker with admin privileges to retain persistent access to Mattermost by obtaining an oauth2 access token while the attacker's account is deactivated.

Vulnerability class: Broken Access Control

EPSS: 0.005 (40.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L.

Affected products

Mattermost — versions 0, 7.10.0, 7.1.10

Weakness classification (CWE)

CWE-862 — Missing Authorization
CWE-613 — Insufficient Session Expiration

References

responsibledisclosure@mattermost.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-2788?: CVE-2023-2788 is a medium-severity vulnerability in Mattermost, classified under Missing Authorization. CVSS score: 6.2/10. Published 2023-06-16.
How severe is CVE-2023-2788?: Medium severity. CVSS v3 base score is 6.2 out of 10.