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Improper Authorization

CVE-2023-5654

Medium
6.5/10

Summary

The React Developer Tools extension registers a message listener with window.addEventListener('message', <listener>) in a content script that is accessible to any webpage that is active in the browser. Within the listener is code that requests a URL derived from the received message via fetch(). The URL is not validated or sanitised before it is fetched, thus allowing a malicious web page to arbitrarily fetch URL’s via the victim's browser.

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

CWE-285 - Improper Authorization

The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

References

Advisory Timeline

  • Published