Vulnerability Monitor

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CVE-2025-66552

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the admin_audit app to not properly log all actions on files and folders inside groupfolders. This vulnerability is fixed in Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1.

Published

2025-12-05T17:16:05.687

Last Modified

2025-12-10T15:14:47.713

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 4.3 (MEDIUM)

Weaknesses

Type: Secondary
CWE-778

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	nextcloud_server	< 30.0.9	Yes
Application	nextcloud	nextcloud_server	< 30.0.9	Yes
Application	nextcloud	nextcloud_server	< 31.0.1	Yes
Application	nextcloud	nextcloud_server	< 31.0.1	Yes

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-ww9m-f8j4-jj9x Patch, Vendor Advisory ([email protected])
https://github.com/nextcloud/server/commit/7cc005c43c72bc384848cf8cb851895827c412f6 Patch ([email protected])
https://github.com/nextcloud/server/pull/50992 Issue Tracking ([email protected])
https://hackerone.com/reports/2890071 Issue Tracking, Vendor Advisory ([email protected])