CVE-2020-35111
Medium
Description
When an extension with the proxy permission registered to receive <all_urls>, the proxy.onRequest callback was not triggered for view-source URLs. While web content cannot navigate to such URLs, a user opening View Source could have inadvertently leaked their IP address. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Mozilla Firefox
PublishedJan 7, 2021
First seenJan 7, 2021
How to fix
Update
- mozilla firefox84.0 or later
- mozilla firefox_esr78.6.0 or later
- mozilla thunderbird78.6.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 84.0 | 84.0 |
| mozilla firefox_esr | v < 78.6.0 | 78.6.0 |
| mozilla thunderbird | v < 78.6.0 | 78.6.0 |
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