Android `intent` URL scheme allows for iframe sandbox escape in Firefox for Android (Firefox < 85)

CVE-2021-23957 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Navigations through the Android-specific `intent` URL scheme could have been misused to escape iframe sandbox. Note: This issue only affected Firefox for Android. Other operating systems are unaffected. This vulnerability affects Firefox < 85.

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