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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2021-4140

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.

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox ESR

  • unspecified to < 91.5affected

Mozilla Firefox

  • unspecified to < 96affected

Mozilla Thunderbird

  • unspecified to < 91.5affected

References