| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 79.0 | 79.0 |
| firefox esr | < 78.1 | 78.1 |
| thunderbird | < 78.1 | 78.1 |
A redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free