Vulnerability in Electron
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. 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Electron — versions >= 9.0.0-beta.0, <= 9.0.0-beta.20, >= 8.0.0, < 8.2.4, < 7.2.4
- Electronjs Electron — versions 9.0.0
Weakness classification (CWE)
References
- www.electronjs.org/releases/stable (Release Notes, Vendor Advisory)
- github.com/electron/electron/security/advisories/GHSA-f9mq-jph6-9mhm (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-4075?
- CVE-2020-4075 is a medium-severity vulnerability in Electron, classified under Files or Directories Accessible to External Parties. CVSS score: 6.8/10. Published 2020-07-07.
- How severe is CVE-2020-4075?
- Medium severity. CVSS v3 base score is 6.8 out of 10.