---
cve: "CVE-2026-54720"
severity: "MEDIUM"
cvss: 5.4
epss: "0.3%"
vendor: "silverstripe"
kev: false
exploited: false
published: "2026-07-01 21:17:03"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T05:37:21+02:00"
---

# CVE-2026-54720

> 5.4 MEDIUM · 🧪 PoC

## Beschreibung

Silverstripe Framework is a PHP framework which powers the Silverstripe CMS. In versions prior to 6.2.2, the "Insert media from web" functionality in the CMS is vulnerable to XSS from a specially crafted embed. This issue was fixed in version 6.2.2/

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/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 | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 1bcb02adfc365c6436dc26ab2f6dd32d97f3979b (Commit)

## Referenzen

- <https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-gvrw-qqp5-jgc5>
- <https://www.silverstripe.org/download/security-releases/cve-2026-54720>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-54720) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_