CVE-2017-7821

critical

Description

A vulnerability where WebExtensions can download and attempt to open a file of some non-executable file types. This can be triggered without specific user interaction for the file download and open actions. This could be used to trigger known vulnerabilities in the programs that handle those document types. This vulnerability affects Firefox < 56.

References

https://www.mozilla.org/security/advisories/mfsa2017-21/

https://bugzilla.mozilla.org/show_bug.cgi?id=1346515

http://www.securitytracker.com/id/1039465

http://www.securityfocus.com/bid/101057

Details

Source: Mitre, NVD

Published: 2018-06-11

Updated: 2019-10-03

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical