CVE-2018-21252

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Source
https://cve.org/CVERecord?id=CVE-2018-21252
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-21252.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-21252
Published
2020-06-19T18:15:10Z
Modified
2026-10-20T10:50:25Z
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 5.2, 5.1.1, 5.0.3, and 4.10.3. Attackers could use multiple e-mail addresses to bypass a domain-based policy for signups.

References

Affected packages

Git / github.com/mattermost/mattermost

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
821de23caac6a78a3d09da95ad2f833ba2c2372f
Introduced
85a75526c7c03fca1d14a39cfb3f2638d98d3fe1
Fixed
d1534154d18ce1f101738034bee93c77bedda5f4
Introduced
54994502241bf40bebd9a9d7719c58f708aef5b1
Fixed
77274a7aca64491a1898d4e4239158817a503a8e
Introduced
9bf01f1401ed47afc4fc443974e2bd4db50b2f50
Last Affected
43483805eabcb36ef9018f12a82a6d3ac055baf5
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "4.10.3"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.0.0"
                },
                {
                    "fixed":  "5.0.3"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.1.0"
                },
                {
                    "fixed":  "5.1.1"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc1:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.2.0-rc1"
                },
                {
                    "last_affected":  "5.2.0-rc1"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc2:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.2.0-rc2"
                },
                {
                    "last_affected":  "5.2.0-rc2"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc3:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.2.0-rc3"
                },
                {
                    "last_affected":  "5.2.0-rc3"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc4:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.2.0-rc4"
                },
                {
                    "last_affected":  "5.2.0-rc4"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc5:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.2.0-rc5"
                },
                {
                    "last_affected":  "5.2.0-rc5"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc6:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.2.0-rc6"
                },
                {
                    "last_affected":  "5.2.0-rc6"
                }
            ],
            "source":  "CPE_STRING"
        }
    ]
}

Affected versions

5.*
5.2.0-rc1
5.2.0-rc3
5.2.0-rc5
v0.*
v0.5.0
v4.*
v4.10.0
v4.10.0-rc1
v4.10.0-rc2
v4.10.0-rc3
v4.10.0-rc4
v4.10.0-rc5
v4.10.1
v4.10.1-rc1
v4.10.2
v4.10.2-rc1
v4.2.0-rc1
v4.3.0-rc1
v4.4.0-rc1
v4.5.0-rc1
v4.6.0-rc1
v4.6.0-rc2
v4.7.0-rc1
v4.8.0-rc1
v4.9.0-rc1
v5.*
v5.0.0
v5.0.0-rc6
v5.0.0-rc7
v5.0.1
v5.0.1-rc1
v5.0.2
v5.0.2-rc1
v5.1.0
v5.1.0-rc4
v5.2.0
v5.2.0-rc1
v5.2.0-rc2
v5.2.0-rc3
v5.2.0-rc4
v5.2.0-rc5
v5.2.0-rc6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-21252.json"