CVE-2026-47423 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-47423HIGH

cure53 DOMPurify — DOMPurify XSS via `selectedcontent` re-clone

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  C  H  L  N    8.2   .0027   19.3     —

AFFECTED
  Product    Versions             Fixed
  DOMPurify  >= 3.4.4, < 3.4.5 –  —

TIMELINE
  May 19  Reserved by GitHub_M
  Jul 14  EXPLOIT PUBLISHED — CVE-2026-47423 (cure53 DOMPurify). Public exploit reference added.
  Jul 14  Published (CNA: GitHub_M)

CWE-79 · CNA: GitHub_M · CVSS v3.1 · 3 references · NVD status: Analyzed

Description

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside <selectedcontent> is returned. This issue is fixed in version 3.4.5.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 19, 2026	Reserved	Reserved by GitHub_M
July 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-47423 (cure53 DOMPurify). Public exploit reference added.
July 14, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
cure53	DOMPurify	—	>= 3.4.4, < 3.4.5	—

Weaknesses

CWE-79

References (3)

https://github.com/cure53/DOMPurify/commit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea [Patch]
https://github.com/cure53/DOMPurify/releases/tag/3.4.5 [Release Notes]
https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-47423 at cve.org

Vendors: cure53

Weaknesses: CWE-79

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-47423 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.