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SUSE: CVE-2021-28957: SUSE Linux Security Advisory

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SUSE: CVE-2021-28957: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
03/21/2021
Created
03/14/2022
Added
03/12/2022
Modified
11/02/2022

Description

An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3.

Solution(s)

  • suse-upgrade-python-lxml
  • suse-upgrade-python2-lxml
  • suse-upgrade-python2-lxml-devel
  • suse-upgrade-python2-lxml-doc
  • suse-upgrade-python3-lxml
  • suse-upgrade-python3-lxml-devel
  • suse-upgrade-python3-lxml-doc

References

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