CVE-2020-4077 HIGH

CVE-2020-4077: Context isolation bypass via contextBridge in Electron

Vendor Electron
Product electron
Weakness CWE-501
Published July 7, 2020
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using both `contextIsolation` and `contextBridge` are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

Key dates

02Disclosure timeline

July 7, 2020 CVE published
August 4, 2024 Record updated