CVE-2017-5865: ownCloud

Low severity, CVSS 3.7. EPSS: 1.1% chance of exploitation in the next 30 days.

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.

Affected products

• ownCloud ownCloud: up to and including 8.1.10; version 8.2.2 only; version 8.2.3 only; version 8.2.4 only; version 8.2.5 only; version 8.2.6 only; …

Published 2017-03-03. Last modified 2026-06-17.