CVE-2021-28957 (GCVE-0-2021-28957)
Vulnerability from cvelistv5
Published
2021-03-21 04:39
Modified
2024-08-03 21:55
Severity ?
CWE
  • n/a
Summary
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.
References
cve@mitre.org https://bugs.launchpad.net/lxml/+bug/1888153 Exploit, Issue Tracking, Third Party Advisory
cve@mitre.org https://github.com/lxml/lxml/commit/a5f9cb52079dc57477c460dbe6ba0f775e14a999 Patch, Third Party Advisory
cve@mitre.org https://github.com/lxml/lxml/pull/316/commits/10ec1b4e9f93713513a3264ed6158af22492f270 Patch, Third Party Advisory
cve@mitre.org https://lists.debian.org/debian-lts-announce/2021/03/msg00031.html Mailing List, Third Party Advisory
cve@mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3C2R44VDUY7FJVMAVRZ2WY7XYL4SVN45/
cve@mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXN3QPWCTQVOGW4BMWV3AUUZZ4NRZNSQ/
cve@mitre.org https://security.gentoo.org/glsa/202208-06 Third Party Advisory
cve@mitre.org https://security.netapp.com/advisory/ntap-20210521-0004/ Third Party Advisory
cve@mitre.org https://www.debian.org/security/2021/dsa-4880 Third Party Advisory
cve@mitre.org https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://bugs.launchpad.net/lxml/+bug/1888153 Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/lxml/lxml/commit/a5f9cb52079dc57477c460dbe6ba0f775e14a999 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/lxml/lxml/pull/316/commits/10ec1b4e9f93713513a3264ed6158af22492f270 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2021/03/msg00031.html Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3C2R44VDUY7FJVMAVRZ2WY7XYL4SVN45/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXN3QPWCTQVOGW4BMWV3AUUZZ4NRZNSQ/
af854a3a-2127-422b-91ae-364da2661108 https://security.gentoo.org/glsa/202208-06 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20210521-0004/ Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2021/dsa-4880 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Third Party Advisory
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

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