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.

References

http://www.securityfocus.com/bid/102786

http://www.securitytracker.com/id/1040270

https://bugzilla.mozilla.org/show_bug.cgi?id=1390882

https://usn.ubuntu.com/3544-1/

https://www.mozilla.org/security/advisories/mfsa2018-02/

Details

Risk Information

CVSS v2

CVSS v3