CVE-2021-43818

lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.
Injection
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
GitHub_MCNA
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 85%
VendorProductVersion
lxmllxml
𝑥
< 4.6.5
debiandebian_linux
9.0
debiandebian_linux
10.0
debiandebian_linux
11.0
netappsolidfire
-
netappsolidfire_enterprise_sds
-
netapphci_storage_node_firmware
-
oraclecommunications_cloud_native_core_binding_support_function
22.1.3
oraclecommunications_cloud_native_core_network_exposure_function
22.1.1
oraclecommunications_cloud_native_core_policy
22.2.0
oraclehttp_server
12.2.1.3.0
oraclehttp_server
12.2.1.4.0
oraclezfs_storage_appliance_kit
8.8
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
lxml
bullseye (security)
4.6.3+dfsg-0.1+deb11u1
fixed
bullseye
4.6.3+dfsg-0.1+deb11u1
fixed
bookworm
4.9.2-1
fixed
sid
5.3.0-1
fixed
trixie
5.3.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
lxml
jammy
Fixed 4.7.1-1
released
impish
Fixed 4.6.3+dfsg-0.1ubuntu0.2
released
hirsute
Fixed 4.6.3-1ubuntu0.2
released
focal
Fixed 4.5.0-1ubuntu0.5
released
bionic
Fixed 4.2.1-1ubuntu0.6
released
xenial
Fixed 3.5.0-1ubuntu0.4+esm2
released
trusty
Fixed 3.3.3-1ubuntu0.2+esm5
released
References