Is CVE-2025-47793 in the CISA KEV catalog?

No. CVE-2025-47793 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-47793?

CVE-2025-47793 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2025-47793?

CVE-2025-47793 has an EPSS score of 0.66% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-47793?

Upgrade group folders to 18.0.3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2025-47793

MEDIUM

4.3

CVSS v3

NVD

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.

CWE-770Allocation of Resources Without Limits or Throttling

How to fix

Remediation Available

group foldersNVD

Affected:>= 18.0.0, < 18.0.3Fixed in:18.0.3CVE-2025-47793derived from NVD

nextcloud serverNVD

Affected:>= 30.0.0, < 30.0.2Fixed in:30.0.2CVE-2025-47793derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

0.66%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Patch2

Third-Party Advisory1

github.com

Other references1

hackerone.com

Related Vulnerabilities

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-50387	High	7.5	100%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2019-11479	High	7.5	92%	-	Fix
CVE-2024-27316	High	7.5	91%	-	Fix
CVE-2022-30522	High	7.5	90%	-	Fix
CVE-2019-9515	High	7.5	88%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-08.