CVE-2017-7843

When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely

published June 11, 2018

CVSS
—
EPSS
3%
Percentile
86.7
In the wild
Unconfirmed
What it is

When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02892 · 86.7th percentile
Published
2018-06-11T21:00Z
EPSS history
Timeline
  • 11 JUN 21:00Z
    When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely
    cvelistv5