CVE-2020-4075: Electronjs Electron

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

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.

Affected products

• Electronjs Electron: from 7.0.0, before 7.2.4 (fixed in 7.2.4); from 8.0.0, before 8.2.4 (fixed in 8.2.4); version 9.0.0 only

Published 2020-07-07. Last modified 2026-06-17.