CVE-2025-66552

published 2025-12-05

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…

Priority P4 23 medium 4.3 CVSS 3.1

AV N AC L PR L UI N S U C N I L A N

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.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
nextcloud	nextcloud_server	>= 30.0.0 < 30.0.9	30.0.9
nextcloud	nextcloud_server	>= 31.0.0 < 31.0.1	31.0.1
nextcloud	security-advisories	< 31.0.9	31.0.9
nextcloud	security-advisories	—	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-778