High severity · published Jul 7, 2020
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
7.5
CVSS
1.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Electron · Electronjs
7.0.0 before 7.2.4; 8.0.0 before 8.2.4; 9.0.0; 9.0.0; 9.0.0; 9.0.0; +17 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-4075
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-4075
Third Party Advisory
https://github.com/electron/electron/security/advisories/GHSA-f9mq-jph6-9mhm
Release Notes
https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824
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