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CVE-2018-19787

Published: 2 December 2018

An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by "j a v a s c r i p t:" in Internet Explorer. This is a similar issue to CVE-2014-3146.

Priority

Medium

CVSS 3 base score: 6.1

Status

Package Release Status
lxml
Launchpad, Ubuntu, Debian
bionic
Released (4.2.1-1ubuntu0.1)
cosmic Not vulnerable
(4.2.5-1)
precise
Released (2.3.2-1ubuntu0.3)
trusty
Released (3.3.3-1ubuntu0.2)
upstream
Released (4.2.5-1)
xenial
Released (3.5.0-1ubuntu0.1)
Patches:
upstream: https://github.com/lxml/lxml/commit/6be1d081b49c97cfd7b3fbd934a193b668629109