| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 101 | 101 |
| firefox esr | < 91.10 | 91.10 |
| thunderbird | < 91.10 | 91.10 |
When downloading files on Windows, the % character was not escaped, which could have lead to a download incorrectly being saved to attacker-influenced paths that used variables such as %HOMEPATH% or %APPDATA%.<br>*This bug only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
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