Auth bypass in Mattermost

CVE-2023-3590

Mattermost fails to delete card attachments in Boards, allowing an attacker to access deleted attachments.

Vulnerability class: Broken Access Control

EPSS: 0.004 (35.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Mattermost — versions 0, 7.10.3
Mattermost Mattermost_server

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

responsibledisclosure@mattermost.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-3590?: CVE-2023-3590 is a low-severity vulnerability in Mattermost, classified under Incorrect Authorization. CVSS score: 3.1/10. Published 2023-07-17.
How severe is CVE-2023-3590?: Low severity. CVSS v3 base score is 3.1 out of 10.