CVE-2018-21259

MEDIUM

Mattermost Server < 4.8.2 - Denial of Service via Malformed Channel Link

Title source: llm
STIX 2.1

Description

An issue was discovered in Mattermost Server before 4.10.1, 4.9.4, and 4.8.2. It allows attackers to cause a denial of service (application hang) via a malformed link in a channel.

References (1)

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

Scores

CVSS v3 5.3
EPSS 0.0038
EPSS Percentile 59.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

CWE
CWE-20
Status published
Products (1)
mattermost/mattermost_server < 4.8.2
Published Jun 19, 2020
Tracked Since Feb 18, 2026