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CVE-2017-7839

Published: 15 November 2017

Control characters prepended before "javascript:" URLs pasted in the addressbar can cause the leading characters to be ignored and the pasted JavaScript to be executed instead of being blocked. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks where users are convinced to copy and paste text into the addressbar. This vulnerability affects Firefox < 57.

Priority

Low

CVSS 3 base score: 6.1

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
artful
Released (57.0+build4-0ubuntu0.17.10.5)
bionic
Released (57.0.1+build2-0ubuntu1)
precise Does not exist

trusty Does not exist
(trusty was released [57.0+build4-0ubuntu0.14.04.4])
upstream
Released (57.0)
xenial
Released (57.0+build4-0ubuntu0.16.04.5)
zesty
Released (57.0+build4-0ubuntu0.17.04.5)