Overview
- Description
- Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.
- Source
- responsibledisclosure@mattermost.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 6.5
- Impact score
- 3.6
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5CD5238E-205F-43CF-9487-8956194F4950",
"versionEndIncluding": "7.8.3",
"versionStartIncluding": "7.8.0"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C0B8C4AA-4D8D-4AE3-953E-990360DD57F9",
"versionEndIncluding": "7.9.2",
"versionStartIncluding": "7.9.0"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost:7.10.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "980D0FB9-D2FF-4C31-BC92-07073A8F4BB3"
}
],
"operator": "OR"
}
]
}
]