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Unrestricted Upload of File with Dangerous Type

CVE-2025-65844

High
7.5/10

Summary

EverShop versions prior to 2.1.0 allows a remote unauthenticated attacker to upload arbitrary files and create directories via the "/api/images" endpoint. The endpoint is accessible without authentication by default, and server-side validation of uploaded files is insufficient. This can be abused to upload arbitrary content (including non-image files) which could impersonate user/admin login panels (exfiltrating credentials) and to perform a Denial-of-Service (DoS) attack by exhausting disk space.

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

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