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.
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Affected Vendors & Products
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Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
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Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2024-08-05T16:12:28.355Z
Reserved: 2017-04-12T00:00:00
Link: CVE-2017-7820

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Status : Modified
Published: 2018-06-11T21:29:10.873
Modified: 2024-11-21T03:32:44.003
Link: CVE-2017-7820

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