CVE-2020-4075
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.18% probability · 66th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-552
- Affected
- electronjs/electron
- Source
- security-advisories@github.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.