Overview
- Description
- The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.
- Source
- responsibledisclosure@mattermost.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 4.3
- Impact score
- 1.4
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 4
- Impact score
- 2.9
- Exploitability score
- 8
- Vector string
- AV:N/AC:L/Au:S/C:P/I:N/A:N
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F3029CCE-B6F4-4AB9-A48A-D7F4067DEFE8",
"versionEndExcluding": "6.3.8"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "54574FF7-8E64-4C4A-855D-716CB79C1B81",
"versionEndIncluding": "6.5.1",
"versionStartIncluding": "6.4.0"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost:6.6.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6DB27A25-5C62-4DEF-8CE5-BFD0605D60F3"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost:6.6.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F3CCC890-55C7-40B8-9FF8-F80811BD60A4"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost:6.7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6E7308C7-2774-49E3-8136-EF304DBDB110"
}
],
"operator": "OR"
}
]
}
]