CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS
Percentile
51.3%
This vulnerability allows a sandboxed renderer to request a “thumbnail” image of an arbitrary file on the user’s system. The thumbnail can potentially include significant parts of the original file, including textual data in many cases.
All current stable versions of Electron are affected.
This was fixed with #30728, and the following Electron versions contain the fix:
If your app enables contextIsolation
, this vulnerability is significantly more difficult for an attacker to exploit.
Further, if your app does not depend on the createThumbnailFromPath
API, then you can simply disable the functionality. In the main process, before the ‘ready’ event:
delete require('electron').nativeImage.createThumbnailFromPath
If you have any questions or comments about this advisory, email us at [email protected].
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS
Percentile
51.3%