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Vulnerability details: VCID-s1q3-vaf2-rfa1
Vulnerability ID VCID-s1q3-vaf2-rfa1
Aliases CVE-2020-4076
GHSA-m93v-9qjc-3g79
Summary Context isolation bypass via leaked cross-context objects in Electron ### Impact Apps using `contextIsolation` are affected. This is a context isolation bypass, meaning that code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. ### Workarounds There are no app-side workarounds, you must update your Electron version to be protected. ### Fixed Versions * `9.0.0-beta.21` * `8.2.4` * `7.2.4` ### Non-Impacted Versions * `9.0.0-beta.*` ### For more information If you have any questions or comments about this advisory: * Email us at [security@electronjs.org](mailto:security@electronjs.org)
Status Published
Exploitability 0.5
Weighted Severity 8.1
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-501 Trust Boundary Violation
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
epss 0.00075 https://api.first.org/data/v1/epss?cve=CVE-2020-4076
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-m93v-9qjc-3g79
cvssv3.1 7.8 https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79
cvssv3.1_qr HIGH https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79
generic_textual HIGH https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79
cvssv2 3.6 https://nvd.nist.gov/vuln/detail/CVE-2020-4076
cvssv3.1 7.8 https://nvd.nist.gov/vuln/detail/CVE-2020-4076
cvssv3.1 9.0 https://nvd.nist.gov/vuln/detail/CVE-2020-4076
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-4076
cvssv3.1 7.8 https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824
generic_textual HIGH https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-4076
https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79
https://nvd.nist.gov/vuln/detail/CVE-2020-4076
https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824
cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:-:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:-:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta10:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta10:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta11:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta11:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta12:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta12:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta13:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta13:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta14:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta14:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta15:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta15:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta16:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta16:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta17:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta17:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta18:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta18:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta19:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta19:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta2:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta20:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta20:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta3:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta4:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta5:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta5:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta6:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta6:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta7:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta7:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta8:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta8:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:9.0.0:beta9:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:electronjs:electron:9.0.0:beta9:*:*:*:*:*:*
GHSA-m93v-9qjc-3g79 https://github.com/advisories/GHSA-m93v-9qjc-3g79
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N Found at https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-4076
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-4076
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-4076
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N Found at https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.23356
EPSS Score 0.00075
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:47:59.408836+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/07/GHSA-m93v-9qjc-3g79/GHSA-m93v-9qjc-3g79.json 37.0.0