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CVE-2021-38503

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.


Affected Software


CPE Name Name Version
mozilla:firefox mozilla firefox 94.0
mozilla:firefox_esr mozilla firefox esr 91.3
mozilla:thunderbird mozilla thunderbird 91.3
debian:debian_linux debian debian linux 9.0
debian:debian_linux debian debian linux 10.0
debian:debian_linux debian debian linux 11.0

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