The password reset functionality in ownCloud Server before 8.1.11, 8.2.x before 8.2.9, 9.0.x before 9.0.7, and 9.1.x before 9.1.3 sends different error messages depending on whether the username is valid, which allows remote attackers to enumerate user names via a large number of password reset attempts.
This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 3.7, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, for affected systems. Impacting 1 product from owncloud organizations running these solutions should prioritize assessment and patching.
First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2017-03-03T15:59:01.320
2025-04-20T01:37:25.860
Deferred
CVSSv3.0: 3.7 (LOW)
AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | owncloud | owncloud | ≤ 8.1.10 | Yes |
| Application | owncloud | owncloud | 8.2.2 | Yes |
| Application | owncloud | owncloud | 8.2.3 | Yes |
| Application | owncloud | owncloud | 8.2.4 | Yes |
| Application | owncloud | owncloud | 8.2.5 | Yes |
| Application | owncloud | owncloud | 8.2.6 | Yes |
| Application | owncloud | owncloud | 8.2.7 | Yes |
| Application | owncloud | owncloud | 8.2.8 | Yes |
| Application | owncloud | owncloud | 9.0.0 | Yes |
| Application | owncloud | owncloud | 9.0.1 | Yes |
| Application | owncloud | owncloud | 9.0.2 | Yes |
| Application | owncloud | owncloud | 9.0.3 | Yes |
| Application | owncloud | owncloud | 9.0.4 | Yes |
| Application | owncloud | owncloud | 9.0.5 | Yes |
| Application | owncloud | owncloud | 9.0.6 | Yes |
| Application | owncloud | owncloud | 9.1.0 | Yes |
| Application | owncloud | owncloud | 9.1.1 | Yes |
| Application | owncloud | owncloud | 9.1.2 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For owncloud's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.