CVE-2018-21251

Source
https://cve.org/CVERecord?id=CVE-2018-21251
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-21251.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-21251
Published
2020-06-19T17:15:12.490Z
Modified
2026-04-10T04:09:08.902587Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in Mattermost Server before 5.2 and 5.1.1. Authorization could be bypassed if the channel name were not the same in the params and the body.

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
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.1.1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.2.0-rc1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.2.0-rc2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.2.0-rc3"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.2.0-rc4"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.2.0-rc5"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.2.0-rc6"
        }
    ]
}

Affected versions

v0.*
v0.5.0
v4.*
v4.10.0-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-rc1
v5.1.0
v5.1.0-rc1
v5.1.0-rc2
v5.1.0-rc3
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-2018-21251.json"