| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 70.0 | 70.0 |
| firefox esr | < 68.2 | 68.2 |
| thunderbird | < 68.2 | 68.2 |
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.
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