mozilla -- multiple vulnerabilitiesentered 2017-09-29
no CVE referenced
CVE 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.
Affected ports (0)
No port is within the affected range.