Vulnerability in Mattermost Server

CVE-2019-20884

An issue was discovered in Mattermost Server before 5.8.0. It allows attackers to partially attach a file to more than one post.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2019-20884: held from 0.008 to 0.008.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

References

Frequently asked questions

What is CVE-2019-20884?
CVE-2019-20884 is a medium-severity vulnerability in Mattermost Server. CVSS score: 5.3/10. Published 2020-06-19.
How severe is CVE-2019-20884?
Medium severity. CVSS v3 base score is 5.3 out of 10.