CVE-2020-26870

Cure53 DOMPurify before 2.0.17 allows mutation XSS. This occurs because a serialize-parse roundtrip does not necessarily return the original DOM tree, and a namespace can change from HTML to MathML, as demonstrated by nesting of FORM elements.
Configurations

Configuration 1 (hide)

cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:a:microsoft:visual_studio_2017:15.9:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2019:16.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2019:16.4:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2019:16.7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2019:16.8:*:*:*:*:*:*:*

Configuration 4 (hide)

cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:20

Type Values Removed Values Added
References () https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d - Patch, Third Party Advisory () https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d - Patch, Third Party Advisory
References () https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 - Patch, Third Party Advisory () https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 - Patch, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html - Mailing List, Third Party Advisory
References () https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 - Patch, Vendor Advisory () https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 - Patch, Vendor Advisory
References () https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/ - Exploit, Third Party Advisory () https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/ - Exploit, Third Party Advisory
References () https://www.oracle.com//security-alerts/cpujul2021.html - Patch, Third Party Advisory () https://www.oracle.com//security-alerts/cpujul2021.html - Patch, Third Party Advisory

Information

Published : 2020-10-07 16:15

Updated : 2024-11-21 05:20


NVD link : CVE-2020-26870

Mitre link : CVE-2020-26870

CVE.ORG link : CVE-2020-26870


JSON object : View

Products Affected

microsoft

  • visual_studio_2019
  • visual_studio_2017

oracle

  • application_express

cure53

  • dompurify

debian

  • debian_linux
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')