CVE-2021-3815CWE-1321

Prototype Pollution in fabiocaccamo/utils.js

High · published December 8, 2021

CVSS v3.0
8.0
EPSS
1%
Percentile
58.4
In the wild
Unconfirmed
What it is

⚡ A tiny oversight in utils.js lets an attacker tamper with the object prototype! This could lead to some serious mischief! Think of it like a sneaky chef who can quietly alter the recipe book in a restaurant—suddenly, every dish served to customers might taste off or even be unsafe! If exploited, this vulnerability could allow attackers to modify fundamental behaviors of applications, leading to unpredictable effects, data corruption, or even complete system compromise. Imagine a situation where the very fabric of what your application can do is rewritten by a malicious actor—yikes!

Put simply

Think of it like a sneaky chef who can quietly alter the recipe book in a restaurant—suddenly, every dish served to customers might taste off or even be unsafe! This vulnerability arises from improperly controlled modification of object prototype attributes, allowing attackers to inject properties into the prototype chain, drastically impacting how applications process data and handle operations.

What to do

If exploited, this vulnerability could allow attackers to modify fundamental behaviors of applications, leading to unpredictable effects, data corruption, or even complete system compromise. Imagine a situation where the very fabric of what your application can do is rewritten by a malicious actor—yikes! To remediate this, ensure you update to the latest version of utils.js that addresses this issue. Additionally, audit your code to check how objects are handled, and enforce strict controls on prototype properties. Don’t forget to keep your dependencies updated regularly! You’ve got this! With these steps, you can tighten your defenses and regain control! 🛡️

The record
Technical detail
CVSS v3.0
8.0 · HIGH
Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00871 · 58.4th percentile
Weakness
CWE-1321 · Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Published
2021-12-08T16:15Z
EPSS history
Timeline
  • 08 DEC 16:15Z
    Prototype Pollution in fabiocaccamo/utils.js
    cvelistv5