What is CVE-2025-59480?

CVE-2025-59480 is a medium-severity vulnerability in Mattermost, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.1/10. Published 2025-11-13.

How severe is CVE-2025-59480?

Medium severity. CVSS v3 base score is 6.1 out of 10.

CSRF in Mattermost

CVE-2025-59480

Mattermost Mobile Apps versions <=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-UR…

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.001 (2.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N.

Affected products

Mattermost — versions 0, 2.33.0
Mattermost Mattermost_mobile

Weakness classification (CWE)

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

References

responsibledisclosure@mattermost.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-59480?: CVE-2025-59480 is a medium-severity vulnerability in Mattermost, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.1/10. Published 2025-11-13.
How severe is CVE-2025-59480?: Medium severity. CVSS v3 base score is 6.1 out of 10.