CVE-2018-18497
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mozilla Firefox
PublishedFeb 28, 2019
First seenFeb 28, 2019
How to fix
Update
- mozilla firefox64.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 64.0 | 64.0 |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 18.10 | — |
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