- Description
- WebExtensions can bypass user prompts to first save and then open an arbitrarily downloaded file. This can result in an executable file running with local user privileges without explicit user consent. This vulnerability affects Firefox < 58.
- Source
- security@mozilla.org
- NVD status
- Modified
CVSS 3.0
- Type
- Primary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 7.2
- Impact score
- 10
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Hype score
- Not currently trending
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1725C8A3-FA9C-4A5E-B46F-48FDB429E7EE",
"versionEndIncluding": "57.0.4"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9070C9D8-A14A-467F-8253-33B966C16886"
}
],
"operator": "OR"
}
]
}
]