CVE-2019-25337
OwnCloud 8.1.8 - Username Disclosure
- State
- Published
- Severity
- 5.3 Medium
- Published
- Feb 12, 2026
- Updated
- Jul 15, 2026
- Reserved
- Feb 12, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-203 Observable Discrepancy
Affected Products
| Product | Versions |
|---|---|
OwnCloudOwnCloud |
|
References
- ExploitDB-47745exploit
- OwnCloud Official Homepageproduct
- OwnCloud Software Download Repositoryproduct
- VulnCheck Advisory: OwnCloud 8.1.8 - Username Disclosurethird-party-advisory
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