NetSight
critical10.0

CVE-2021-4140

It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox.

Impact

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

VendorProductAffected versions
MozillaFirefox
before 96.0
MozillaFirefox Esr
before 91.5
MozillaThunderbird
before 91.5

Weakness classification

References