Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Mozilla / Firefox | affected unspecified before 56 |
CWE
No CWE identifiers supplied.
References
- http://www.securitytracker.com/id/1039465
- https://bugzilla.mozilla.org/show_bug.cgi?id=1378207
- https://www.mozilla.org/security/advisories/mfsa2017-21/
- http://www.securityfocus.com/bid/101057
ADP enrichment
No English description supplied.