CVE-2025-47793CWE-770

Nextcloud Server and Groupfolders app vulnerable to bypass of group folder quota limit using attachment in text file

Medium · published May 16, 2025

CVSS v3.1
4.3
EPSS
1%
Percentile
56.9
In the wild
Unconfirmed
What it is

Nextcloud Server is a self hosted personal cloud system, and the Nextcloud Groupfolders app provides admin-configured folders shared by everyone in a group or team. In Nextcloud Server prior to 30.0.2, 29.0.9, and 28.0.1, Nextcloud Enterprise Server prior to 30.0.2 and 29.0.9, and Nextcloud Groupfolders app prior to 18.0.3, 17.0.5, and 16.0.11, the absence of quota checking on attachments allowed logged-in users to upload files exceeding the group folder quota. Nextcloud Server versions 30.0.2 and 29.0.9, Nextcloud Enterprise Server versions 30.0.2, 29.0.9, or 28.0.12, and Nextcloud Groupfolders app 18.0.3, 17.0.5, and 16.0.11 fix the issue. No known workarounds are available.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00821 · 56.9th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2025-05-16T14:31Z
EPSS history
Timeline
  • 16 MAY 14:31Z
    Nextcloud Server and Groupfolders app vulnerable to bypass of group folder quota limit using attachment in text file
    cvelistv5