CVE-2018-19787

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

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.

References

https://github.com/lxml/lxml/commit/6be1d081b49c97cfd7b3fbd934a193b668629109

https://lists.debian.org/debian-lts-announce/2018/12/msg00001.html

https://lists.debian.org/debian-lts-announce/2020/11/msg00044.html

https://usn.ubuntu.com/3841-1/

https://usn.ubuntu.com/3841-2/

Details

Source: MITRE

Published: 2018-12-02

Updated: 2020-11-26

Type: CWE-79

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.1

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

Impact Score: 2.7

Exploitability Score: 2.8

Severity: MEDIUM

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
151412EulerOS Virtualization 3.0.2.2 : python-lxml (EulerOS-SA-2021-2162)NessusHuawei Local Security Checks
medium
151345EulerOS Virtualization for ARM 64 3.0.2.0 : python-lxml (EulerOS-SA-2021-2109)NessusHuawei Local Security Checks
medium
149105EulerOS 2.0 SP3 : python-lxml (EulerOS-SA-2021-1839)NessusHuawei Local Security Checks
medium
147095EulerOS Virtualization for ARM 64 3.0.6.0 : python-lxml (EulerOS-SA-2021-1538)NessusHuawei Local Security Checks
medium
147041EulerOS Virtualization 3.0.6.6 : python-lxml (EulerOS-SA-2021-1514)NessusHuawei Local Security Checks
medium
146712EulerOS 2.0 SP2 : python-lxml (EulerOS-SA-2021-1352)NessusHuawei Local Security Checks
medium
144170EulerOS 2.0 SP8 : python-lxml (EulerOS-SA-2020-2529)NessusHuawei Local Security Checks
medium
142071EulerOS 2.0 SP5 : python-lxml (EulerOS-SA-2020-2296)NessusHuawei Local Security Checks
medium
141751EulerOS 2.0 SP9 : python-lxml (EulerOS-SA-2020-2235)NessusHuawei Local Security Checks
medium
141740EulerOS 2.0 SP9 : python-lxml (EulerOS-SA-2020-2236)NessusHuawei Local Security Checks
medium
120488Fedora 28 : python-lxml (2018-67e98d4b7a)NessusFedora Local Security Checks
medium
120402Fedora 29 : python-lxml (2018-4be0428ab2)NessusFedora Local Security Checks
medium
119580Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : lxml vulnerability (USN-3841-1)NessusUbuntu Local Security Checks
medium
119560Debian DLA-1604-1 : lxml security updateNessusDebian Local Security Checks
medium