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.
Published 2020-07-07 00:15:11
Updated 2020-07-13 19:48:24
Source GitHub, Inc.
View at NVD,   CVE.org

Products affected by CVE-2020-4076

Exploit prediction scoring system (EPSS) score for CVE-2020-4076

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-4076

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.6
LOW AV:L/AC:L/Au:N/C:P/I:P/A:N
3.9
4.9
NIST
9.0
CRITICAL CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
2.5
5.8
NIST
7.8
HIGH CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
1.4
5.8
GitHub, Inc.

CWE ids for CVE-2020-4076

  • The product mixes trusted and untrusted data in the same data structure or structured message.
    Assigned by: security-advisories@github.com (Secondary)

References for CVE-2020-4076

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