CVE-2019-20841

HIGH

Mattermost Server < 5.9.7 - Cross-Site Request Forgery

Title source: llm
STIX 2.1

Description

An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. CSRF can sometimes occur via a crafted web site for account takeover attacks.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://mattermost.com/security-updates/

Scores

CVSS v3 8.8
EPSS 0.0014
EPSS Percentile 33.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-352
Status published
Products (2)
mattermost/mattermost_server 5.18.0 rc1 (4 CPE variants)
mattermost/mattermost_server < 5.9.7
Published Jun 19, 2020
Tracked Since Feb 18, 2026