Generated remediation guidance and an executive summary. No account required.
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.
Cite this page
CVE-2020-4075. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2020-4075
Use CWE-552, Electronjs vendor hub and Electron product page to widen CVE-2020-4075 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-34780, CVE-2026-34774 and CVE-2026-34771 for nearby disclosures in the same product family.