CVE-2021-43818 – lxml

Package

Manager: pip
Name: lxml
Vulnerable Version: >=0 <4.6.5

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N

CVSS v4.0: 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

EPSS: 0.03013 pctl0.86086

Details

lxml's HTML Cleaner allows crafted and SVG embedded scripts to pass through ### Impact 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. ### Patches The issue has been resolved in lxml 4.6.5. ### Workarounds None. ### References The issues are tracked under the report IDs GHSL-2021-1037 and GHSL-2021-1038.

Metadata

Created: 2021-12-13T18:14:36Z
Modified: 2024-09-30T16:50:30Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/12/GHSA-55x5-fj6c-h6m8/GHSA-55x5-fj6c-h6m8.json
CWE IDs: ["CWE-74", "CWE-79"]
Alternative ID: GHSA-55x5-fj6c-h6m8
Finding: F008
Auto approve: 1