CVE-2025-66552

EUVD-2025-201446
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
GitHub_MCNA
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 9%
Affected Products (NVD)
VendorProductVersion
nextcloudnextcloud_server
30.0.0 ≤
𝑥
< 30.0.9
nextcloudnextcloud_server
30.0.0 ≤
𝑥
< 30.0.9
nextcloudnextcloud_server
31.0.0 ≤
𝑥
< 31.0.1
nextcloudnextcloud_server
31.0.0 ≤
𝑥
< 31.0.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-ww9m-f8j4-jj9x
https://github.com/nextcloud/server/commit/7cc005c43c72bc384848cf8cb851895827c412f6
https://github.com/nextcloud/server/pull/50992
https://hackerone.com/reports/2890071