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

CVE-2025-6278

Low
2/10

Summary

A vulnerability classified as critical was found in Upsonic prior to 0.56.0. This vulnerability affects the function "os.path.join" of the file "markdown/server.py". The manipulation of the argument file. filename leads to path traversal. The exploit has been disclosed to the public and may be used.

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