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Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVE-2025-66295

High
8.8/10

Summary

Grav is a file-based Web platform. In versions prior to 1.8.0-beta.27, when a user with privilege of user creation creates a new user through the Admin UI and supplies a username containing path traversal sequences (for example "..\Nijat" or "../Nijat"), Grav writes the account YAML file to an unintended path outside "user/accounts/". The written YAML can contain account fields such as "email", "fullname", "twofa_secret", and "hashed_password".

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

CWE-22 - Path Traversal

Path traversal (or directory traversal), is a vulnerability that allows malicious users to traverse the server's root directory, gaining access to arbitrary files and folders such as application code & data, back-end credentials, and sensitive operating system files. In the worst-case scenario, an attacker could potentially execute arbitrary files on the server, resulting in a denial of service attack. Such an exploit may severely impact the integrity, confidentiality, and availability of an application.

References

Advisory Timeline

  • Published