CVEvulnerability

CVE-2018-5105

7.8 HIGH Published 2018-06-11 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-06-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.8 HIGH — CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C

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.

Affected configurations

• mozilla firefox (<= 57.0.4) • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • canonical ubuntu linux 17.10

References