If two same-origin documents set document.domain differently to become cross-origin, it was possible for them to call arbitrary DOM methods/getters/setters on the now-cross-origin window. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
| Software | From | Fixed in |
|---|---|---|
| mozilla / firefox_esr | - | 68.2 |
| mozilla / thunderbird | - | 68.2 |
| mozilla / firefox | - | 70.0 |
| canonical / ubuntu_linux | 16.04 | 16.04.x |