Due to a layout change, iframe contents could have been rendered outside of its border. This could have led to user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
2022-12-22T20:15:24.533
2025-04-16T14:15:20.033
Modified
CVSSv3.1: 5.4 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | mozilla | firefox | < 99.0 | Yes |
| Application | mozilla | firefox_esr | < 91.8 | Yes |
| Application | mozilla | thunderbird | < 91.8 | Yes |