CVE-2020-27783

MEDIUM

Description

A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.

References

https://advisory.checkmarx.net/advisory/CX-2020-4286

https://bugzilla.redhat.com/show_bug.cgi?id=1901633

https://lists.debian.org/debian-lts-announce/2020/12/msg00028.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/JKG67GPGTV23KADT4D4GK4RMHSO4CIQL/

https://lists.fedoraproject.org/archives/list/[email protected]/message/TMHVKRUT22LVWNL3TB7HPSDHJT74Q3JK/

https://www.debian.org/security/2020/dsa-4810

Details

Source: MITRE

Published: 2020-12-03

Updated: 2021-03-30

Type: CWE-79

Risk Information

CVSS v2.0

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 v3.0

Base Score: 6.1

Vector: CVSS:3.1/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
148061EulerOS 2.0 SP5 : python-lxml (EulerOS-SA-2021-1701)NessusHuawei Local Security Checks
medium
147527EulerOS Virtualization 3.0.2.6 : python-lxml (EulerOS-SA-2021-1420)NessusHuawei Local Security Checks
medium
147453EulerOS Virtualization for ARM 64 3.0.2.0 : python-lxml (EulerOS-SA-2021-1402)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
145738EulerOS 2.0 SP8 : python-lxml (EulerOS-SA-2021-1166)NessusHuawei Local Security Checks
medium
144963Fedora 33 : python-lxml (2020-0e055ea503)NessusFedora Local Security Checks
medium
144957Fedora 32 : python-lxml (2020-307946cfb6)NessusFedora Local Security Checks
medium
144702EulerOS 2.0 SP9 : python-lxml (EulerOS-SA-2021-1035)NessusHuawei Local Security Checks
medium
144676EulerOS : python-lxml (EulerOS-SA-2021-1016)NessusHuawei Local Security Checks
medium
144189Debian DSA-4810-1 : lxml - security updateNessusDebian Local Security Checks
medium
144078Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : lxml vulnerability (USN-4666-2)NessusUbuntu Local Security Checks
medium
144012Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : lxml vulnerability (USN-4666-1)NessusUbuntu Local Security Checks
medium
143308Debian DLA-2467-2 : lxml regression updateNessusDebian Local Security Checks
medium