When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a temporary storage not unlike the clipboard. This bug only affects Firefox on X11. Other systems are unaffected. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 120.0 (excluding) |
| Firefox_esr | Mozilla | * | 115.5.0 (excluding) |
| Thunderbird | Mozilla | * | 115.5 (excluding) |