CVE-2019-25337 MEDIUM

CVE-2019-25337: OwnCloud 8.1.8 - Username Disclosure

Vendor Owncloud
Product OwnCloud
Weakness CWE-203
Published February 12, 2026
Last update February 13, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 12, 2026 CVE published
February 13, 2026 Record updated