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Unrestricted Upload of File with Dangerous Type

CVE-2021-43430

High
8.8/10

Summary

An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver, which could let a malicious user upload PHP Trojan files.

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