CVE-2025-47794

Description

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server prior to 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1, an attacker on a multi-user system may read temporary files from Nextcloud running with a different user account, or run a symlink attack. Nextcloud Server versions 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1 fix the issue. No known workarounds are available.

CVSS v3.1 Score

2.6

LOW

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

Weakness Type (CWE)

CWE-284 CWE-284

Affected Products

Vendor	Product	Versions
nextcloud	nextcloud_server	26.0.0 — 26.0.13.13
nextcloud	nextcloud_server	27.0.0 — 27.1.11.13
nextcloud	nextcloud_server	28.0.0 — 28.0.14.4
nextcloud	nextcloud_server	29.0.0 — 29.0.13
nextcloud	nextcloud_server	29.0.0 — 29.0.13
nextcloud	nextcloud_server	30.0.0 — 30.0.7
nextcloud	nextcloud_server	30.0.0 — 30.0.7
nextcloud	nextcloud_server	31.0.0 — 31.0.1
nextcloud	nextcloud_server	31.0.0 — 31.0.1

References

Advisories & Patches

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-q568-2933-gcjq

Other References

https://github.com/nextcloud/server/pull/51194 https://hackerone.com/reports/1960647

Frequently Asked Questions

What is CVE-2025-47794? +

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server prior to 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1, an attacker on a multi-user system may read temporary files from Nextcloud running with a different user account, or run a symlink attack. Nextcloud Server versions 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1 fix the issue. No known workarounds are available. It has a CVSS v3.1 base score of 2.6 (LOW).

How severe is CVE-2025-47794? +

CVE-2025-47794 has a CVSS v3.1 score of 2.6 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-47794? +

CVE-2025-47794 affects products from nextcloud, specifically: nextcloud_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-47794? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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