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CVE-2021-4140

Description

It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.


Affected Software


CPE Name Name Version
mozilla:firefox mozilla firefox 96.0
mozilla:firefox_esr mozilla firefox esr 91.5
mozilla:thunderbird mozilla thunderbird 91.5

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