Alma Linux: CVE-2021-28957: Moderate: python39:3.9 and python39-devel:3.9 security update (Multiple Advisories)
4
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
03/21/2021
05/05/2022
05/04/2022
09/24/2024
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)
- alma-upgrade-babel
- alma-upgrade-python-nose-docs
- alma-upgrade-python-psycopg2-doc
- alma-upgrade-python-sqlalchemy-doc
- alma-upgrade-python2-Cython
- alma-upgrade-python2-PyMySQL
- alma-upgrade-python2-attrs
- alma-upgrade-python2-babel
- alma-upgrade-python2-backports
- alma-upgrade-python2-backports-ssl_match_hostname
- alma-upgrade-python2-bson
- alma-upgrade-python2-chardet
- alma-upgrade-python2-coverage
- alma-upgrade-python2-dns
- alma-upgrade-python2-docs
- alma-upgrade-python2-docs-info
- alma-upgrade-python2-docutils
- alma-upgrade-python2-funcsigs
- alma-upgrade-python2-idna
- alma-upgrade-python2-ipaddress
- alma-upgrade-python2-jinja2
- alma-upgrade-python2-markupsafe
- alma-upgrade-python2-mock
- alma-upgrade-python2-nose
- alma-upgrade-python2-numpy
- alma-upgrade-python2-numpy-doc
- alma-upgrade-python2-numpy-f2py
- alma-upgrade-python2-pluggy
- alma-upgrade-python2-psycopg2
- alma-upgrade-python2-psycopg2-debug
- alma-upgrade-python2-psycopg2-tests
- alma-upgrade-python2-py
- alma-upgrade-python2-pygments
- alma-upgrade-python2-pymongo
- alma-upgrade-python2-pymongo-gridfs
- alma-upgrade-python2-pysocks
- alma-upgrade-python2-pytest
- alma-upgrade-python2-pytest-mock
- alma-upgrade-python2-pytz
- alma-upgrade-python2-pyyaml
- alma-upgrade-python2-requests
- alma-upgrade-python2-rpm-macros
- alma-upgrade-python2-scipy
- alma-upgrade-python2-setuptools
- alma-upgrade-python2-setuptools-wheel
- alma-upgrade-python2-setuptools_scm
- alma-upgrade-python2-six
- alma-upgrade-python2-sqlalchemy
- alma-upgrade-python2-urllib3
- alma-upgrade-python2-virtualenv
- alma-upgrade-python2-wheel
- alma-upgrade-python2-wheel-wheel
- alma-upgrade-python3-lxml
- alma-upgrade-python38-Cython
- alma-upgrade-python38-PyMySQL
- alma-upgrade-python38-asn1crypto
- alma-upgrade-python38-atomicwrites
- alma-upgrade-python38-attrs
- alma-upgrade-python38-babel
- alma-upgrade-python38-cffi
- alma-upgrade-python38-chardet
- alma-upgrade-python38-cryptography
- alma-upgrade-python38-idna
- alma-upgrade-python38-jinja2
- alma-upgrade-python38-markupsafe
- alma-upgrade-python38-mod_wsgi
- alma-upgrade-python38-more-itertools
- alma-upgrade-python38-numpy
- alma-upgrade-python38-numpy-doc
- alma-upgrade-python38-numpy-f2py
- alma-upgrade-python38-packaging
- alma-upgrade-python38-pluggy
- alma-upgrade-python38-ply
- alma-upgrade-python38-psutil
- alma-upgrade-python38-psycopg2
- alma-upgrade-python38-psycopg2-doc
- alma-upgrade-python38-psycopg2-tests
- alma-upgrade-python38-py
- alma-upgrade-python38-pycparser
- alma-upgrade-python38-pyparsing
- alma-upgrade-python38-pysocks
- alma-upgrade-python38-pytest
- alma-upgrade-python38-pytz
- alma-upgrade-python38-pyyaml
- alma-upgrade-python38-requests
- alma-upgrade-python38-scipy
- alma-upgrade-python38-setuptools
- alma-upgrade-python38-setuptools-wheel
- alma-upgrade-python38-six
- alma-upgrade-python38-urllib3
- alma-upgrade-python38-wcwidth
- alma-upgrade-python38-wheel
- alma-upgrade-python38-wheel-wheel
- alma-upgrade-python39-Cython
- alma-upgrade-python39-PyMySQL
- alma-upgrade-python39-attrs
- alma-upgrade-python39-cffi
- alma-upgrade-python39-chardet
- alma-upgrade-python39-cryptography
- alma-upgrade-python39-idna
- alma-upgrade-python39-iniconfig
- alma-upgrade-python39-mod_wsgi
- alma-upgrade-python39-more-itertools
- alma-upgrade-python39-numpy
- alma-upgrade-python39-numpy-doc
- alma-upgrade-python39-numpy-f2py
- alma-upgrade-python39-packaging
- alma-upgrade-python39-pluggy
- alma-upgrade-python39-ply
- alma-upgrade-python39-psutil
- alma-upgrade-python39-psycopg2
- alma-upgrade-python39-psycopg2-doc
- alma-upgrade-python39-psycopg2-tests
- alma-upgrade-python39-py
- alma-upgrade-python39-pycparser
- alma-upgrade-python39-pyparsing
- alma-upgrade-python39-pysocks
- alma-upgrade-python39-pytest
- alma-upgrade-python39-pyyaml
- alma-upgrade-python39-requests
- alma-upgrade-python39-scipy
- alma-upgrade-python39-setuptools
- alma-upgrade-python39-setuptools-wheel
- alma-upgrade-python39-six
- alma-upgrade-python39-toml
- alma-upgrade-python39-urllib3
- alma-upgrade-python39-wcwidth
- alma-upgrade-python39-wheel
- alma-upgrade-python39-wheel-wheel
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