CVEvulnerability

CVE-2017-18871

7.5 HIGH Published 2020-06-19 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-06-19
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P

Description

An issue was discovered in Mattermost Server before 4.5.0, 4.4.5, 4.3.4, and 4.2.2. It allows attackers to cause a denial of service (application crash) via an @ character before a JavaScript field name.

Affected configurations

• mattermost mattermost server (< 4.2.2) • mattermost mattermost server (>= 4.3.0 < 4.3.4) • mattermost mattermost server (>= 4.4.0 < 4.4.5) • mattermost mattermost server 4.5.0

References