CVE-2019-25337 - CVE House
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Status published Medium CVE-2019-25337

OwnCloud 8.1.8 - Username Disclosure

Vulnerability Description

OwnCloud 8.1.8 contains a username enumeration vulnerability that allows remote attackers to discover user accounts by manipulating the share.php endpoint. Attackers can send crafted GET requests to /index.php/core/ajax/share.php with a wildcard search parameter to retrieve comprehensive user information.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Daniel Moreno

Affected Vendor

Affected Software

OwnCloud
Vulnerable Versions:
8.1.8

Timeline

Official Publish: February 12th, 2026
Last Modified: July 15th, 2026
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)