Vulnerability Database

308,681

Total vulnerabilities in the database

CVE-2023-28999

Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure and add new files.​ This issue is fixed in Nextcloud Desktop 3.8.0, Nextcloud Android 3.25.0, and Nextcloud iOS 4.8.0. No known workarounds are available.

  • Published: Apr 4, 2023
  • Updated: Nov 16, 2025
  • CVE: CVE-2023-28999
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.9
  • AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L