Detections
Analytics
CVE-2021-43818
medium
Description
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.
References
https://www.oracle.com/security-alerts/cpujul2022.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.debian.org/security/2022/dsa-5043
https://security.netapp.com/advisory/ntap-20220107-0005/
https://security.gentoo.org/glsa/202208-06
https://lists.debian.org/debian-lts-announce/2021/12/msg00037.html
https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8
https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0
https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664a
Details
Published: 2021-12-13
Updated: 2024-11-21
Risk Information
CVSS v2
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
CVSS v3
Base Score: 7.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Severity: High
CVSS v4
Base Score: 6.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N
Severity: Medium
EPSS
EPSS: 0.02863