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Exposure of Private Personal Information to an Unauthorized Actor

CVE-2025-66510

Medium
4.5/10

Summary

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users (emails, names, identifiers) without proper access control. This allows an authenticated user to retrieve information about accounts that are not related or added as contacts.

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

CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor

The product does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected.

References

Advisory Timeline

  • Published