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
Status
Package | Release | Status |
---|---|---|
lxml Launchpad, Ubuntu, Debian |
bionic |
Released
(4.2.1-1ubuntu0.1)
|
cosmic |
Not vulnerable
(4.2.5-1)
|
|
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 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.1 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Changed |
Confidentiality | Low |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |