Vulnerability in Electron
CVE-2020-4077
In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using both `contextIsolation` and `contextBridge` are affected. 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 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.010 (62.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · 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)
Public proof-of-concept exploits
References
- github.com/electron/electron/security/advisories/GHSA-h9jc-284h-533g (Third Party Advisory)
- www.electronjs.org/releases/stable (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-4077?
- CVE-2020-4077 is a high-severity vulnerability in Electron, classified under Trust Boundary Violation. CVSS score: 7.7/10. Published 2020-07-07.
- How severe is CVE-2020-4077?
- High severity. CVSS v3 base score is 7.7 out of 10.
- Is CVE-2020-4077 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.