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Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CVE-2022-25301

High
9.8/10

Summary

All versions of package jsgui-lang-essentials are vulnerable to Prototype Pollution due to allowing all "Object" attributes to be altered, including their magical attributes such as "proto", "constructor" and "prototype".

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-1321 - Prototype Pollution

Prototype pollution is one of the lesser-known vulnerabilities. It allows attackers to abuse the rules of JavaScript by injecting properties into the general object “Object” in JS. Modifying the prototype of “Object” affects the behavior of all objects in the entire app, potentially resulting in denial of service, arbitrary code execution, cross-site scripting, etc.

References

Advisory Timeline

  • Published