CVE-2018-21256

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Source
https://cve.org/CVERecord?id=CVE-2018-21256
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-21256.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-21256
Published
2020-06-19T18:15:10.740Z
Modified
2026-03-14T09:29:23.451121Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in Mattermost Server before 5.1. It allows attackers to bypass intended access restrictions (for group-message channel creation) via the Group message slash command.

References

Affected packages

Git / github.com/mattermost/mattermost-server

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost-server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
54994502241bf40bebd9a9d7719c58f708aef5b1
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.1.0"
        }
    ]
}

Affected versions

v0.*
v0.5.0
v0.6.0
v1.*
v1.0.0
v1.1.0
v1.1.1
v1.2.1
v1.3.0
v1.4.0
v2.*
v2.0.0
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.1.0
v3.2.0
v3.3.0
v3.4.0
v3.5.0
v3.5.1
v3.6.0
v3.6.1
v3.7.0
v3.7.1
v3.7.2
v3.7.3
v3.8.0
v4.*
v4.0.0
v4.0.1
v4.1.0
v4.10.0
v4.10.0-rc1
v4.10.0-rc2
v4.10.0-rc3
v4.10.0-rc4
v4.10.0-rc5
v4.2.0-rc1
v4.3.0
v4.3.0-rc1
v4.3.0-rc2
v4.3.0-rc3
v4.3.0-rc4
v4.4.0
v4.4.0-rc1
v4.4.0-rc2
v4.4.0-rc3
v4.4.0-rc4
v4.4.0-rc5
v4.5.0
v4.5.0-rc1
v4.5.0-rc2
v4.5.0-rc3
v4.5.0-rc4
v4.5.1
v4.5.1-rc1
v4.5.2
v4.5.2-rc1
v4.6.0
v4.6.0-rc1
v4.6.0-rc2
v4.6.0-rc3
v4.6.0-rc4
v4.6.0-rc5
v4.6.0-rc6
v4.7.0
v4.7.0-rc1
v4.7.0-rc2
v4.7.0-rc3
v4.7.0-rc4
v4.7.1
v4.7.1-rc1
v4.7.2
v4.7.2-rc1
v4.7.2-rc2
v4.7.2-rc3
v4.7.3
v4.7.3-rc1
v4.8.0
v4.8.0-rc1
v4.8.0-rc2
v4.8.0-rc3
v4.8.0-rc4
v4.8.0-rc5
v4.8.0-rc6
v4.9.0
v4.9.0-rc1
v4.9.0-rc2
v4.9.0-rc3
v4.9.0-rc4
v4.9.0-rc5
v4.9.0-rc6
v5.*
v5.0.0
v5.0.0-rc1
v5.0.0-rc2
v5.0.0-rc3
v5.0.0-rc4
v5.0.0-rc5
v5.0.0-rc6
v5.0.0-rc7
v5.0.1
v5.0.1-rc1
v5.1.0-rc1
v5.1.0-rc2
v5.1.0-rc3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-21256.json"