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%.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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 101 (excluding) |
| Firefox_esr | Mozilla | * | 91.10 (excluding) |
| Thunderbird | Mozilla | * | 91.10 (excluding) |