CSRF in Mattermost Server

CVE-2019-20865

An issue was discovered in Mattermost Server before 5.12.0, 5.11.1, 5.10.2, 5.9.2, and 4.10.10. The login page allows CSRF.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.005 (39.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-20865?
CVE-2019-20865 is a high-severity vulnerability in Mattermost Server, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2020-06-19.
How severe is CVE-2019-20865?
High severity. CVSS v3 base score is 8.8 out of 10.