CVE-2019-20884

MEDIUM

Mattermost Server <5.8.0 - Info Disclosure

Title source: llm
STIX 2.1

Description

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

References (1)

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

Scores

CVSS v3 5.3
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:L/A:N

Details

Status published
Products (1)
mattermost/mattermost_server < 5.8.0
Published Jun 19, 2020
Tracked Since Feb 18, 2026