CVE-2021-28957
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- CVE-2021-28957
CVE Details
| Release Date: | 2021-03-21 |
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.
See more information about CVE-2021-28957 from MITRE CVE dictionary and NIST NVD
CVSS v3.0 metrics
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
| Base Score: | 6.1 | Base Metrics: | AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| Access Vector: | Network | Attack Complexity: | Low |
| Privileges Required: | None | User Interaction: | Required |
| Scope: | Changed | Confidentiality Impact: | Low |
| Integrity Impact: | Low | Availability Impact: | None |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (Cython) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (Cython) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (Cython) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (PyYAML) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (PyYAML) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (PyYAML) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (babel) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (babel) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (mod_wsgi) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (mod_wsgi) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (numpy) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (numpy) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (numpy) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (ol-automation-manager) | ELSA-2022-9341 | 2022-04-27 |
| Oracle Linux version 8 (pybind11) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (pytest) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (pytest) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (pytest) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-PyMySQL) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-PyMySQL) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-PyMySQL) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-asn1crypto) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-atomicwrites) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-attrs) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-attrs) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-attrs) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-backports) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-backports-ssl_match_hostname) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-cffi) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-cffi) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-chardet) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-chardet) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-chardet) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-coverage) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-cryptography) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-cryptography) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-dns) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-docs) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-docutils) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-funcsigs) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-idna) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-idna) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-idna) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-iniconfig) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-ipaddress) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-jinja2) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-jinja2) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-lxml) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-lxml) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-lxml) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-markupsafe) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-markupsafe) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-mock) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-more-itertools) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-more-itertools) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-nose) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-packaging) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-packaging) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pluggy) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-pluggy) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-pluggy) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-ply) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-ply) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-psutil) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-psutil) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-psycopg2) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-psycopg2) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-psycopg2) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-py) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-py) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-py) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pycparser) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-pycparser) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pygments) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-pymongo) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-pysocks) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-pysocks) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-pysocks) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pytest-mock) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-requests) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-requests) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-requests) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-setuptools_scm) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-sqlalchemy) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-toml) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-urllib3) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-urllib3) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-urllib3) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-virtualenv) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-wcwidth) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-wcwidth) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-wheel) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-wheel) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-wheel) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python2) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python2-pip) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python2-rpm-macros) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python2-setuptools) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python2-six) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python38) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python39) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pip) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pip) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pyparsing) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pyparsing) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-setuptools) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-setuptools) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-six) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-six) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (pytz) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (pytz) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (scipy) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (scipy) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (scipy) | ELSA-2021-4162 | 2021-11-16 |
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