CVE-2020-6802

Summary

CVECVE-2020-6802
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-03-24 22:15:00 UTC
Updated2023-11-07 03:25:00 UTC
DescriptionIn Mozilla Bleach before 3.11, a mutation XSS affects users calling bleach.clean with noscript and a raw tag in the allowed/whitelisted tags option.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 30 All All All
Operating System Fedoraproject Fedora 31 All All All
Operating System Fedoraproject Fedora 32 All All All
Operating System Fedoraproject Fedora 30 All All All
Operating System Fedoraproject Fedora 31 All All All
Operating System Fedoraproject Fedora 32 All All All
Application Mozilla Bleach All All All All
Application Mozilla Bleach All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 31 Update: python-bleach-3.1.4-2.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 32 Update: python-bleach-3.1.4-2.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
mutation XSS in bleach.clean when noscript and raw tag whitelisted · Advisory · mozilla/bleach · GitHub MISC github.com Third Party Advisory
[SECURITY] Fedora 32 Update: python-bleach-3.1.4-2.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
[SECURITY] Fedora 31 Update: python-bleach-3.1.4-2.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
[SECURITY] Fedora 30 Update: python-bleach-3.1.4-2.fc30 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 30 Update: python-bleach-3.1.4-2.fc30 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
Mutation Cross-Site Scripting (mXSS) Vulnerabilities Discovered in Mozilla-Bleach MISC www.checkmarx.com Exploit, Third Party Advisory
advisory.checkmarx.net/advisory/CX-2020-4276 MISC advisory.checkmarx.net
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 501361 Alpine Linux Security Update for py3-bleach
  • 981587 Python (pip) Security Update for bleach (GHSA-q65m-pv3f-wr5r)
© 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