CVE-2021-43818

HIGH8.2EPSS 5.4%

lxml's HTML Cleaner allows crafted and SVG embedded scripts to pass through

發布日:2021/12/13修改日:2026/4/9
也稱為:GHSA-55x5-fj6c-h6m8ALPINE-CVE-2021-43818DEBIAN-CVE-2021-43818PYSEC-2021-852

描述

### 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.

受影響套件(6)

  • Alpine/py3-lxmlfrom 0, < 4.6.5-r0
  • Debian/lxmlfrom 0, < 4.6.3+dfsg-0.1+deb11u1
  • Debian/lxmlfrom 0, < 3.7.1-1+deb9u5
  • Debian/lxmlfrom 0, < 4.3.2-1+deb10u4
  • PyPI/lxmlfrom 0, < 4.6.5
  • PyPI/lxmlfrom 0, < f2330237440df7e8f39c3ad1b1aa8852be3b27c0, < 12fa9669007180a7bb87d990c375cf91ca5b664a | from 0, < a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c | from 0, < 4.6.5

CVSS 分數

來源版本嚴重程度向量
osvCVSS 4.0—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
osvCVSS 3.1HIGH8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N

參考連結(19)