Not rated
CVE-2020-35111 When an extension with the proxy permission registered to receive , the proxy.onRequest callback was not triggered for…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 84 | earliest → < 84 | 84 |
| Thunderbird 78.6 | earliest → < 78.6 | 78.6 |
| Firefox ESR 78.6 | earliest → < 78.6 | 78.6 |
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