CVEs-PoC/2020/CVE-2020-26870.md

CVE-2020-26870

Description

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.

POC

Reference

• https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d
• https://www.oracle.com//security-alerts/cpujul2021.html

Github

• https://github.com/deepakdba/cve_checklist
• https://github.com/radtek/cve_checklist