---
cve: "CVE-2020-4075"
severity: "MEDIUM"
cvss: 6.8
epss: "1.2%"
vendor: "electron"
kev: false
exploited: false
published: "2020-07-07 00:15:10"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T12:13:31+02:00"
---

# CVE-2020-4075

> 6.8 MEDIUM · 🧪 PoC

## Beschreibung

In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, arbitrary local file read is possible by defining unsafe window options on a child window opened via window.open. As a workaround, ensure you are calling `event.preventDefault()` on all new-window events where the `url` or `options` is not something you expect. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 0552e0d5de46ffa3b481d741f1db5c779e201565 (Commit)
- d8f90444aa654f886016a22cb771df99c3616178 (Commit)

## Referenzen

- <https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824>
- <https://github.com/electron/electron/security/advisories/GHSA-f9mq-jph6-9mhm>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-4075) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_