CVE-2019-20879

MEDIUM

Mattermost Server < 4.10.7, < 5.6.5, < 5.7.2, < 5.8.0 - Improper Authentication via Email Change

Title source: llm

An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. Changes to e-mail addresses do not require credential re-entry.

Core 1

Core References

Vendor Advisory x_refsource_confirm

CVSS v3 4.3

EPSS 0.0015

EPSS Percentile 35.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-287

Status published

Products (2)

mattermost/mattermost_server 5.8.0 rc1 (4 CPE variants)

mattermost/mattermost_server < 4.10.7

Published Jun 19, 2020

Tracked Since Feb 18, 2026