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Unrestricted Upload of File with Dangerous Type

CVE-2022-25581

High
7.8/10

Summary

Classcms v2.5 and below contains an arbitrary file upload via the component \class\classupload. This vulnerability allows attackers to execute code injection via a crafted .txt file.

  • LOW
  • LOCAL
  • HIGH
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • HIGH

CWE-434 - Unrestricted Upload of File with dangerous type

'Unrestricted file upload with dangerous type' attacks involve an attacker uploading or transferring files of dangerous types to the server. The severity of such an attack depends upon the execution mechanism and the storage location of the uploaded file. Thus, it may range from simple defacement to arbitrary file execution, and complete system takeover.

References

Advisory Timeline

  • Published