6.5

CVE-2025-47793: nextcloud group_folders

CVSS: 6.5v3.1MediumAnalyzed
Published 16-05-2025Last modified 16-05-2025
Open JSON

Vulnerability summary

CVE-2025-47793 is a medium (CVSS 6.5) vulnerability in nextcloud group_folders. EPSS estimates a 0.82% chance of exploitation in the next 30 days, higher than 56.5% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.82%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-05-2025
    PublishedVulnerability first disclosed.
  2. 16-05-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.82%

Chance of exploitation in the next 30 days

Percentile

57%

Versus all other CVEs

30-day change

+0.03 pp

From 0.79% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.82%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nextcloud3 products
  • group_folders≥ 16.0.0, < 16.0.11 | ≥ 17.0.0, < 17.0.5 | ≥ 18.0.0, < 18.0.3
  • nextcloud_server≥ 28.0.0, < 28.0.12 | ≥ 29.0.0, < 29.0.9 | ≥ 30.0.0, < 30.0.2
  • security-advisories≥ 30.0.0, < 30.0.2 | ≥ 29.0.0, < 29.0.9 | ≥ 28.0.0, < 28.0.12 | ≥ 18.0.0, < 18.0.3 | ≥ 17.0.0, < 17.0.5 | ≥ 16.0.0, < 16.0.11

1 vendor · 3 products

References

4 links