What is CVE-2023-2793?

CVE-2023-2793 is a medium-severity vulnerability in Mattermost, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2023-06-16.

How severe is CVE-2023-2793?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Mattermost

CVE-2023-2793

Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.006 (43.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mattermost — versions 0, 7.10.1, 7.8.3

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

responsibledisclosure@mattermost.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-2793?: CVE-2023-2793 is a medium-severity vulnerability in Mattermost, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2023-06-16.
How severe is CVE-2023-2793?: Medium severity. CVSS v3 base score is 6.5 out of 10.