CVE-2020-4075
Arbitrary file read via window-open IPC in Electron
Description
### Impact The vulnerability allows arbitrary local file read by defining unsafe window options on a child window opened via window.open. ### Workarounds Ensure you are calling `event.preventDefault()` on all [`new-window`](https://electronjs.org/docs/api/web-contents#event-new-window) events where the `url` or `options` is not something you expect. ### Fixed Versions * `9.0.0-beta.21` * `8.2.4` * `7.2.4` ### For more information If you have any questions or comments about this advisory: * Email us at [security@electronjs.org](mailto:security@electronjs.org)
How to fix CVE-2020-4075
To remediate CVE-2020-4075, upgrade the affected package to a fixed version below.
- —upgrade to 7.2.4 or later
Is CVE-2020-4075 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 7.2.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N |