title: Context isolation bypass via leaked cross-context objects in Electron
description: 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 contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.
problem types: CWE-501 Trust Boundary Violation
affected:
{
product: electron
vendor: electron
versions:
status: affected, version: >= 9.0.0-beta.0, <= 9.0.0-beta.20
status: affected, version: >= 8.0.0, < 8.2.4
status: affected, version: < 7.2.4
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 7.8
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
version: 3.1
]