| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | ≤ 57.0.4 |
WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames are cross-origin. Malicious extensions can inject frames from arbitrary origins into the loaded page and then interact with them, bypassing same-origin user expectations with this permission. This vulnerability affects Firefox < 58.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free