💣Exploit CVE-2025-4083 - Firefox JavaScript URI Isolation Bypass

[Mental_Outlaw]

CVE ID : CVE-2025-4083
Published : April 29, 2025, 2:15 p.m. | 1 day, 5 hours ago
Description : A process isolation vulnerability in Firefox stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird ESR < 128.10.
Severity: 9.1 | CRITICAL
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