---
cve: "CVE-2019-25027"
severity: "MEDIUM"
cvss: 6.1
epss: "0.7%"
vendor: "Vaadin"
kev: false
exploited: false
published: "2021-04-23 16:05:40"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T20:53:27+02:00"
---

# CVE-2019-25027

> 6.1 MEDIUM · 🧪 PoC

## Beschreibung

Missing output sanitization in default RouteNotFoundError view in com.vaadin:flow-server versions 1.0.0 through 1.0.10 (Vaadin 10.0.0 through 10.0.13), and 1.1.0 through 1.4.2 (Vaadin 11.0.0 through 13.0.5) allows attacker to execute malicious JavaScript via crafted URL

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- 96ebe74d7819acea6bf720ad39af1d12132a8956 (Commit)
- 5e286e8a313fb5a8060caa57e6bffaa2a416010d (Commit)

## Referenzen

- <https://vaadin.com/security/cve-2019-25027>
- <https://github.com/vaadin/flow/pull/5498>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2019-25027) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_