PT-2020-8901 · Mattermost · Mattermost Server
CVE-2018-21258
·
Published
2020-06-19
·
Updated
2026-07-30
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Mattermost Server versions prior to 5.1
Description
An issue in Mattermost Server allows attackers to cause a denial of service via the
invite people slash command.Recommendations
For versions prior to 5.1, update to version 5.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the
invite people slash command until the update is applied.Fix
DoS
Special Elements Injection
Resource Exhaustion
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Related Identifiers
Affected Products
Mattermost Server