CVE-2020-4077: high-severity vulnerability in electron
Context isolation bypass via contextBridge in Electron
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 1.0%
exploitation probability
1.0%top 38% of all CVEs
observed exploitation
nono source reports it
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 both `contextIsolation` and `contextBridge` are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Affected products
electron · electronRelated CVEs — electron
In the same product, most dangerous first.
CVE-2020-26272MEDIUMElectron vulnerable to ID collision when routing IPC messages to renderers containing OOPIFsEPSS 1.7%CVE-2020-15174HIGHUnpreventable top-level navigation in ElectronEPSS 1.3%CVE-2020-4075MEDIUMArbitrary file read via window-open IPC in ElectronEPSS 1.2%CVE-2021-39184MEDIUMSandboxed renderers can obtain thumbnails of arbitrary files through the nativeImage APIEPSS 1.1%CVE-2022-29247LOWExposure of Resource to Wrong Sphere in ElectronEPSS 1.0%CVE-2022-21718LOWRenderers can obtain access to random bluetooth device without permission in ElectronEPSS 0.9%