1. Home
  2. Vulnerabilities
  3. CVE-2017-7820

CVE-2017-7820

CVSS v3.0 5.3 (Medium)
53% Progress
CVSS v2.0 5 (Medium)
50% Progress
EPSS 0.48 % (76th)
0.48% Progress
Affected Products 1
Advisories 3
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-NVD-noinfo
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2018-06-11 21:29:10
(6 years ago)
Updated Date
2019-10-03 00:03:26
(5 years ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox 55.0.3 and prior versions cpe:2.3:a:mozilla:firefox <= 55.0.3