| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 78.0.2 | 78.0.2 |
| thunderbird | < 78.0 | 78.0 |
Using object or embed tags, it was possible to frame other websites, even if they disallowed framing using the X-Frame-Options header. This vulnerability affects Thunderbird < 78 and Firefox < 78.0.2.
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