Vulnerability in Mattermost Mattermost_server
CVE-2017-18920
An issue was discovered in Mattermost Server before 3.6.2. The WebSocket feature does not follow the Same Origin Policy.
EPSS: 0.012 (65.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mattermost Mattermost_server
- N/a — versions n/a
References
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-18920?
- CVE-2017-18920 is a critical-severity vulnerability in Mattermost Mattermost_server. CVSS score: 9.8/10. Published 2020-06-19.
- How severe is CVE-2017-18920?
- Critical severity. CVSS v3 base score is 9.8 out of 10.