Upstream information

CVE-2017-18889 at MITRE

Description

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. An attacker could create fictive system-message posts via webhooks and slash commands, in the v3 or v4 REST API.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores
CVSS detail National Vulnerability Database
Base Score 4
Vector AV:N/AC:L/Au:S/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 4.3
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact Low
Availability Impact None
CVSSv3 Version 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References

SUSE Timeline for this CVE

CVE page created: Sun Jun 21 11:55:35 2020
CVE page last modified: Tue Jan 6 13:34:52 2026