Context isolation bypass via leaked cross-context objects in Electron (electron electron)

CVE-2020-4076
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.37 % · percentile 31 ()
State
PUBLISHED
Published
Updated
Assigner
GitHub_M
NVD status
Modified

Description

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.

Weaknesses (CWE)

  • CWE-501 — Trust Boundary Violation

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:NGitHub_M
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:NNVD · security-advisories@github.com (Secondary)
CVSS 3.1CRITICAL 9.0CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:NNVD · nvd@nist.gov (Primary)
CVSS 2.0LOW 3.6AV:L/AC:L/Au:N/C:P/I:P/A:NNVD · nvd@nist.gov (Primary)

Advisories

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
electron · electronaffected >= 9.0.0-beta.0, <= 9.0.0-beta.20 ; affected >= 8.0.0, < 8.2.4 ; affected < 7.2.4

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD