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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2019-25337

CVE-2019-25337

CRITICAL9.8

OwnCloud 8.1.8 - Username Disclosure

Published Feb 12, 2026

Modified 2 weeks ago

Details

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.

References

https://ftp.icm.edu.pl/packages/owncloud/

https://owncloud.org/

https://www.cve.org/CVERecord?id=CVE-2019-25337

https://www.exploit-db.com/exploits/47745

https://www.vulncheck.com/advisories/owncloud-username-disclosure

CVSS Analysis

CVSS v4.0

5.3

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

LowVC:L

Vuln. Integrity

NoneVI:N

Vuln. Availability

NoneVA:N

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

5.3/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

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedFeb 12, 2026

ModifiedFeb 13, 2026

CVE-2019-25337 | Mondoo Vulnerability Intelligence