CVE-2025-66552 Vulnerability Analysis & Exploit Details

CVE-2025-66552
Vulnerability Scoring

4.3
/10
Medium Risk

The vulnerability CVE-2025-66552 could compromise system integrity but typically requires user interaction to be exploited.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2025-66552 Details

Status: Analyzed

Last updated: 🕒 10 Dec 2025, 15:14 UTC
Originally published on: 🕔 05 Dec 2025, 17:16 UTC

Time between publication and last update: 4 days

CVSS Release: version 3

CVSS3 Source

security-advisories@github.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2025-66552 Vulnerability Summary

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.

Assessing the Risk of CVE-2025-66552

Access Complexity Graph

The exploitability of CVE-2025-66552 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2025-66552

CVE-2025-66552 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2025-66552, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2025-66552, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2025-66552 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2025-66552 poses no threat to data integrity.
  • Availability: Low
    CVE-2025-66552 may slightly degrade system performance without fully affecting service availability.

CVE-2025-66552 References

External References

CWE Common Weakness Enumeration

CWE-778

Vulnerable Configurations

  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc3:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc3:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc3:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc3:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc4:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc4:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc4:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc4:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc5:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc5:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc5:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:rc5:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta3:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta3:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta3:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta3:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta4:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta4:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta4:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta4:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta5:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta5:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta5:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:beta5:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:rc2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:rc2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:rc2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.1:rc2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:rc2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:rc2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:rc2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.2:rc2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:rc2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:rc2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:rc2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.3:rc2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.4:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.4:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.4:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.4:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.4:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.4:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.4:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.4:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.5:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.5:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.5:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.5:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.5:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.5:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.5:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.5:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:rc2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:rc2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:rc2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.6:rc2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:rc2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:rc2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:rc2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.7:rc2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.8:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.8:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.8:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.8:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.8:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.8:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:30.0.8:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:30.0.8:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:-:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:-:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:-:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:-:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc3:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc3:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc3:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc3:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc4:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc4:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc4:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc4:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc5:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc5:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc5:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:rc5:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta1:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta1:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta1:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta1:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta2:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta2:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta2:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta2:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta3:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta3:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta3:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta3:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta4:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta4:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta4:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta4:*:*:enterprise:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta5:*:*:-:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta5:*:*:-:*:*:*
  • cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta5:*:*:enterprise:*:*:*
    cpe:2.3:a:nextcloud:nextcloud_server:31.0.0:beta5:*:*:enterprise:*:*:*

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