CVE-2020-4076

moderate-risk
Published 2020-07-07

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 contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

Do I need to act?

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0.07% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / HIGH complexity

Affected Products (20)

Affected Vendors

Electronjs

References (4)

Third Party Advisory https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79
Release Notes https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824
Third Party Advisory https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79
Release Notes https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824
40
/ 100
moderate-risk
Severity 20/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 20/34 · Moderate