Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2017-7820

The "instanceof" operator can bypass the Xray wrapper mechanism. When called on web content from the browser itself or an extension the web content can provide its own result for that operator, possibly tricking the browser or extension into mishandling the element. This vulnerability affects Firefox < 56.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 73.9%
CVSS Severity
CVSS v3 Score 5.3
CVSS v2 Score 5.0
Products affected by CVE-2017-7820


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