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

CVE-2023-26102

High
8.2/10

Summary

All versions of the package rangy are vulnerable to Prototype Pollution when using the "extend()" function in the file "rangy-core.js". The function uses recursive merge which can lead an attacker to modify the properties of the "Object.prototype".

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