Security Advisory

CVE-2021-38503

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-12-08 21:22:07

Last updated 2024-08-04 01:44:23

Assigner mozilla

State PUBLISHED

Description

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

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