Skip to main content

Exposure of Sensitive Information to an Unauthorized Actor

CVE-2023-28163

Medium
6.5/10

Summary

When downloading files through the "Save As dialog" on Windows with suggested filenames containing environment variable names, Windows would have resolved those in the context of the current user. This bug only affects Firefox on Windows. Other versions of Firefox are unaffected. This vulnerability affects Firefox versions prior to 111, Firefox ESR versions prior to 102.9, and Thunderbird versions prior to 102.9.

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

CWE-200 - Information Exposure

An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.

References

Advisory Timeline

  • Published