CVE-2023-39952CWE-284

Advanced permissions not respected when copying entire group folders

Medium · published August 10, 2023

CVSS v3.1
6.5
EPSS
1%
Percentile
56.5
In the wild
Unconfirmed
What it is

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3, and 27.0.1, a user can access files inside a subfolder of a groupfolder accessible to them, even if advanced permissions would block access to the subfolder. Nextcloud Server versions 25.0.8, 26.0.3, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3, and 27.0.1 contain a patch for this issue. No known workarounds are available.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00809 · 56.5th percentile
Weakness
CWE-284 · Improper Access Control
Published
2023-08-10T13:50Z
EPSS history
Timeline
  • 10 AUG 13:50Z
    Advanced permissions not respected when copying entire group folders
    cvelistv5