CVE-2019-20864

HIGH

Mattermost Plugins <5.13.0 - Auth Bypass

Title source: llm
STIX 2.1

Description

An issue was discovered in Mattermost Plugins before 5.13.0. The GitHub plugin allows an attacker to attach his Mattermost account to a different person's GitHub account.

References (1)

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

Scores

CVSS v3 7.5
EPSS 0.0024
EPSS Percentile 47.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

Status published
Products (1)
mattermost/mattermost_plugins < 5.13.0
Published Jun 19, 2020
Tracked Since Feb 18, 2026