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CVE

CWE

Training

CVE-2019-25337

Published: Feb 12, 2026

Modified: Feb 13, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
OwnCloud	OwnCloud	affected `8.1.8`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

ExploitDB-47745

exploit

OwnCloud Official Homepage

product

OwnCloud Software Download Repository

product

VulnCheck Advisory: OwnCloud 8.1.8 - Username Disclosure

third-party-advisory

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