It was possible to prevent a user from exiting pointerlock when pressing escape and to overlay customValidity notifications from a `<select>` element over certain permission prompts. This could be used to confuse a user into giving a site unintended permissions. This vulnerability affects Firefox < 128 and Thunderbird < 128.
2024-07-09T15:15:12.790
2025-07-16T15:40:03.633
Analyzed
CVSSv3.1: 8.8 (HIGH)
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | mozilla | firefox | < 128.0 | Yes |
Application | mozilla | thunderbird | < 128.0 | Yes |