CVE-2020-27783

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2020-27783
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-03 17:15:00 UTC
Updated2023-11-07 03:21:00 UTC
DescriptionA XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 32 All All All
Operating System Fedoraproject Fedora 33 All All All
Application Lxml Lxml All All All All
Application Lxml Lxml All All All All
Application Netapp Snapcenter - All All All
Application Oracle Communications Offline Mediation Controller 12.0.0.3.0 All All All
Application Oracle Zfs Storage Appliance Kit 8.8 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Application Redhat Software Collections - All All All
Application Redhat Software Collections - All All All

References

ReferenceSourceLinkTags
1901633 – (CVE-2020-27783) CVE-2020-27783 python-lxml: mXSS due to the use of improper parser MISC bugzilla.redhat.com Exploit, Issue Tracking, Patch, Third Party Advisory
[SECURITY] Fedora 32 Update: python-lxml-4.4.1-5.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
advisory.checkmarx.net/advisory/CX-2020-4286 MISC advisory.checkmarx.net
Debian -- Security Information -- DSA-4810-1 lxml DEBIAN www.debian.org
[SECURITY] Fedora 33 Update: python-lxml-4.5.1-3.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Oracle Critical Patch Update Advisory - July 2021 N/A www.oracle.com
[SECURITY] [DLA 2467-2] lxml regression update MLIST lists.debian.org
CVE-2020-27783 lxml Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
[SECURITY] Fedora 32 Update: python-lxml-4.4.1-5.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 33 Update: python-lxml-4.5.1-3.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159227 Oracle Enterprise Linux Security Update for python-lxml (ELSA-2021-1898)
  • 159342 Oracle Enterprise Linux Security Update for python27:2.7 (ELSA-2021-1761)
  • 159460 Oracle Enterprise Linux Security Update for python38:3.8 (ELSA-2021-1879)
  • 159768 Oracle Enterprise Linux Security Update for ol-automation-manager (ELSA-2022-9341)
  • 239289 Red Hat Update for python-lxml (RHSA-2021:1898)
  • 239292 Red Hat Update for python38:3.8 (RHSA-2021:1879)
  • 239307 Red Hat Update for python27:2.7 (RHSA-2021:1761)
  • 239580 Red Hat Update for rh-python38 (RHSA-2021:3254)
  • 296069 Oracle Solaris 11.4 Support Repository Update (SRU) 31.88.5 Missing (CPUJAN2021)
  • 352388 Amazon Linux Security Advisory for python-lxml: ALAS2-2021-1666
  • 354846 Amazon Linux Security Advisory for python-lxml : ALAS-2023-1709
  • 377332 Alibaba Cloud Linux Security Update for python-lxml (ALINUX3-SA-2022:0086)
  • 377557 Alibaba Cloud Linux Security Update for python27:2.7 (ALINUX3-SA-2022:0112)
  • 501364 Alpine Linux Security Update for py3-lxml
  • 501679 Alpine Linux Security Update for py3-lxml
  • 504329 Alpine Linux Security Update for py3-lxml
  • 670202 EulerOS Security Update for python-lxml (EulerOS-SA-2021-1701)
  • 670237 EulerOS Security Update for python-lxml (EulerOS-SA-2021-1839)
  • 670673 EulerOS Security Update for python-lxml (EulerOS-SA-2021-2431)
  • 751854 SUSE Enterprise Linux Security Update for python-lxml (SUSE-SU-2022:0803-1)
  • 751858 OpenSUSE Security Update for python-lxml (openSUSE-SU-2022:0803-1)
  • 751901 SUSE Enterprise Linux Security Update for python-lxml (SUSE-SU-2022:0895-1)
  • 752637 SUSE Enterprise Linux Security Update for python3-lxml (SUSE-SU-2022:3461-1)
  • 900214 CBL-Mariner Linux Security Update for python-lxml 4.2.4
  • 901809 Common Base Linux Mariner (CBL-Mariner) Security Update for python-lxml (6807-1)
  • 903431 Common Base Linux Mariner (CBL-Mariner) Security Update for python-lxml (4681)
  • 940287 AlmaLinux Security Update for python38:3.8 (ALSA-2021:1879)
  • 940311 AlmaLinux Security Update for python27:2.7 (ALSA-2021:1761)
  • 960385 Rocky Linux Security Update for python38:3.8 (RLSA-2021:1879)
  • 960420 Rocky Linux Security Update for python27:2.7 (RLSA-2021:1761)
  • 960873 Rocky Linux Security Update for python-lxml (RLSA-2021:1898)
  • 982397 Python (pip) Security Update for lxml (GHSA-pgww-xf46-h92r)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report