CVE-2019-25337 — Observable Discrepancy in Owncloud

CWE-203 — Observable Discrepancy5 documents5 sources
Severity
5.3MEDIUMNVD
EPSS
0.1%
top 65.13%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Owncloud
Timeline
PublishedFeb 12
Latest updateFeb 13

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.

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

Affected Packages1 packages

▶CVEListV5owncloud/owncloud8.1.8

🔴Vulnerability Details

2
GHSA
GHSA-v5m9-phxh-m6wj: OwnCloud 8↗2026-02-13
▶
CVEList
OwnCloud 8.1.8 - Username Disclosure↗2026-02-12
▶

🕵️Threat Intelligence

1
Wiz
CVE-2019-25337 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2019-25337 — Observable Discrepancy in Owncloud | cvebase