NetSight
critical10.0

CVE-2021-38503

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the …

Impact

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 products

VendorProductAffected versions
MozillaFirefox
before 94.0
MozillaFirefox Esr
before 91.3
MozillaThunderbird
before 91.3
DebianDebian Linux
Versions 9.0, 10.0, 11.0

Weakness classification

References