Vulnerability Details : CVE-2020-4076
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.
Products affected by CVE-2020-4076
- cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:-:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta10:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta11:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta12:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta13:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta14:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta15:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta16:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta17:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta18:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta19:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta20:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta7:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta8:*:*:*:*:*:*
- cpe:2.3:a:electronjs:electron:9.0.0:beta9:*:*:*:*:*:*
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
-
https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79
Context isolation bypass via leaked cross-context objects · Advisory · electron/electron · GitHubThird Party Advisory
-
https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824
Stable Releases | ElectronRelease Notes;Vendor Advisory
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