What is CVE-2024-40886?

CVE-2024-40886 is a medium-severity vulnerability in Mattermost, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.6/10. Published 2024-08-22.

How severe is CVE-2024-40886?

Medium severity. CVSS v3 base score is 4.6 out of 10.

CSRF in Mattermost

CVE-2024-40886

Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0, 9.8.x <= 9.8.2 fail to sanitize user inputs in the frontend that are used for redirection which allows for a one-click client-side path traversal that is leading to CSRF in User Management page of the system console.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.002 (9.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L.

Affected products

Mattermost — versions 9.9.0, 9.5.0, 9.10.0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

responsibledisclosure@mattermost.com (Vendor Advisory)

Frequently asked questions

What is CVE-2024-40886?: CVE-2024-40886 is a medium-severity vulnerability in Mattermost, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.6/10. Published 2024-08-22.
How severe is CVE-2024-40886?: Medium severity. CVSS v3 base score is 4.6 out of 10.