Vulnerabilities
Vulnerable Software

Vulnerability Details 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 top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.01
EPSS Ranking 76.3%
CVSS Severity
CVSS v3 Score 10.0
CVSS v2 Score 7.5
References
Products affected by CVE-2021-38503


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