CVE-2020-7765

Prototype Pollution

Medium · published November 16, 2020

CVSS v3.1
5.6
EPSS
1%
Percentile
46.4
In the wild
Unconfirmed
What it is

This affects the package @firebase/util before 0.3.4. This vulnerability relates to the deepExtend function within the DeepCopy.ts file. Depending on if user input is provided, an attacker can overwrite and pollute the object prototype of a program.

The record
Technical detail
CVSS v3.1
5.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00569 · 46.4th percentile
Published
2020-11-16T12:00Z
EPSS history
Timeline
  • 16 NOV 12:00Z
    Prototype Pollution
    cvelistv5