Description
Limitations on the URIs allowed to WebExtensions by the browser.windows.create API can be bypassed when a pipe in the URL field is used within the extension to load multiple pages as a single argument. This could allow a malicious WebExtension to open privileged about: or file: locations. This vulnerability affects Firefox < 64.
Metrics
CVSS 3.0 6.5/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NAffected software
No affected versions have been published.
Timeline
- Published
- Feb 28, 2019
- Last modified
- Jun 17, 2026
- NVD status
- Modified