CVE-2020-4075
Last modified
CVE-2020-4075 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.18% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Electronjs | Electron | >= 7.0.0, < 7.2.4 |
| Electronjs | Electron | >= 8.0.0, < 8.2.4 |
| Electronjs | Electron | 9.0.0 |
References
- https://github.com/electron/electron/security/advisories/GHSA-f9mq-jph6-9mhmThird Party Advisory
- https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824Release Notes, Vendor Advisory
- https://github.com/electron/electron/security/advisories/GHSA-f9mq-jph6-9mhmThird Party Advisory
- https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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