| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 100.0 | 100.0 |
| firefox esr | < 91.9 | 91.9 |
| thunderbird | < 91.9 | 91.9 |
An improper implementation of the new iframe sandbox keyword <code>allow-top-navigation-by-user-activation</code> could lead to script execution without <code>allow-scripts</code> being present. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.
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