---
cve: "CVE-2026-47423"
severity: "HIGH"
cvss: 8.2
epss: "27%"
vendor: "cure53"
kev: false
exploited: false
published: "2026-07-14 20:17:02"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T04:34:42+02:00"
---

# CVE-2026-47423

> 8.2 HIGH · 🧪 PoC

## Beschreibung

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  is returned. This issue is fixed in version 3.4.5.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea (Commit)

## Referenzen

- <https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx>
- <https://github.com/cure53/DOMPurify/commit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea>
- <https://github.com/cure53/DOMPurify/releases/tag/3.4.5>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-47423) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_