Arbitrary file read via window-open IPC in Electron

Impact

The vulnerability allows arbitrary local file read by defining unsafe window options on a child window opened via window.open.

Workarounds

Ensure you are calling event.preventDefault() on all new-window events where the url or options is not something you expect.

Fixed Versions

• 9.0.0-beta.21
• 8.2.4
• 7.2.4

For more information

If you have any questions or comments about this advisory:

• Email us at security@electronjs.org